1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "src/traced/probes/ftrace/cpu_reader.h"
18
19 #include <string.h>
20 #include <sys/stat.h>
21
22 #include "perfetto/base/build_config.h"
23 #include "perfetto/ext/base/utils.h"
24 #include "perfetto/protozero/proto_utils.h"
25 #include "perfetto/protozero/scattered_heap_buffer.h"
26 #include "perfetto/protozero/scattered_stream_writer.h"
27 #include "src/traced/probes/ftrace/event_info.h"
28 #include "src/traced/probes/ftrace/ftrace_config_muxer.h"
29 #include "src/traced/probes/ftrace/ftrace_procfs.h"
30 #include "src/traced/probes/ftrace/proto_translation_table.h"
31 #include "src/traced/probes/ftrace/test/cpu_reader_support.h"
32 #include "src/tracing/core/trace_writer_for_testing.h"
33 #include "test/gtest_and_gmock.h"
34
35 #include "protos/perfetto/trace/ftrace/ftrace.gen.h"
36 #include "protos/perfetto/trace/ftrace/ftrace_event.gen.h"
37 #include "protos/perfetto/trace/ftrace/ftrace_event.pbzero.h"
38 #include "protos/perfetto/trace/ftrace/ftrace_event_bundle.gen.h"
39 #include "protos/perfetto/trace/ftrace/ftrace_event_bundle.pbzero.h"
40 #include "protos/perfetto/trace/ftrace/power.gen.h"
41 #include "protos/perfetto/trace/ftrace/sched.gen.h"
42 #include "protos/perfetto/trace/trace_packet.gen.h"
43 #include "src/traced/probes/ftrace/test/test_messages.gen.h"
44 #include "src/traced/probes/ftrace/test/test_messages.pbzero.h"
45
46 using protozero::proto_utils::ProtoSchemaType;
47 using testing::_;
48 using testing::AnyNumber;
49 using testing::Contains;
50 using testing::Each;
51 using testing::ElementsAre;
52 using testing::ElementsAreArray;
53 using testing::EndsWith;
54 using testing::Eq;
55 using testing::NiceMock;
56 using testing::Pair;
57 using testing::Return;
58 using testing::StartsWith;
59
60 namespace perfetto {
61
62 namespace {
63
EmptyConfig()64 FtraceDataSourceConfig EmptyConfig() {
65 return FtraceDataSourceConfig{EventFilter{},
66 DisabledCompactSchedConfigForTesting(),
67 {},
68 {},
69 false /*symbolize_ksyms*/};
70 }
71
72 constexpr uint64_t kNanoInSecond = 1000 * 1000 * 1000;
73 constexpr uint64_t kNanoInMicro = 1000;
74
WithinOneMicrosecond(uint64_t actual_ns,uint64_t expected_s,uint64_t expected_us)75 ::testing::AssertionResult WithinOneMicrosecond(uint64_t actual_ns,
76 uint64_t expected_s,
77 uint64_t expected_us) {
78 // Round to closest us.
79 uint64_t actual_us = (actual_ns + kNanoInMicro / 2) / kNanoInMicro;
80 uint64_t total_expected_us = expected_s * 1000 * 1000 + expected_us;
81 if (actual_us == total_expected_us)
82 return ::testing::AssertionSuccess();
83
84 return ::testing::AssertionFailure()
85 << actual_ns / kNanoInSecond << "."
86 << (actual_ns % kNanoInSecond) / kNanoInMicro << " vs. " << expected_s
87 << "." << expected_us;
88 }
89
90 class MockFtraceProcfs : public FtraceProcfs {
91 public:
MockFtraceProcfs()92 MockFtraceProcfs() : FtraceProcfs("/root/") {
93 ON_CALL(*this, NumberOfCpus()).WillByDefault(Return(1));
94 ON_CALL(*this, WriteToFile(_, _)).WillByDefault(Return(true));
95 ON_CALL(*this, ClearFile(_)).WillByDefault(Return(true));
96 EXPECT_CALL(*this, NumberOfCpus()).Times(AnyNumber());
97 }
98
99 MOCK_METHOD2(WriteToFile,
100 bool(const std::string& path, const std::string& str));
101 MOCK_METHOD1(ReadOneCharFromFile, char(const std::string& path));
102 MOCK_METHOD1(ClearFile, bool(const std::string& path));
103 MOCK_CONST_METHOD1(ReadFileIntoString, std::string(const std::string& path));
104 MOCK_CONST_METHOD0(NumberOfCpus, size_t());
105 };
106
107 class CpuReaderTableTest : public ::testing::Test {
108 protected:
109 NiceMock<MockFtraceProcfs> ftrace_;
110 };
111
112 // Single class to manage the whole protozero -> scattered stream -> chunks ->
113 // single buffer -> real proto dance. Has a method: writer() to get an
114 // protozero ftrace bundle writer and a method ParseProto() to attempt to
115 // parse whatever has been written so far into a proto message.
116 template <class ZeroT, class ProtoT>
117 class ProtoProvider {
118 public:
ProtoProvider(size_t chunk_size)119 explicit ProtoProvider(size_t chunk_size) : chunk_size_(chunk_size) {}
120 ~ProtoProvider() = default;
121
writer()122 ZeroT* writer() { return writer_.get(); }
ResetWriter()123 void ResetWriter() { writer_.Reset(); }
124
125 // Stitch together the scattered chunks into a single buffer then attempt
126 // to parse the buffer as a FtraceEventBundle. Returns the FtraceEventBundle
127 // on success and nullptr on failure.
ParseProto()128 std::unique_ptr<ProtoT> ParseProto() {
129 auto bundle = std::unique_ptr<ProtoT>(new ProtoT());
130 std::vector<uint8_t> buffer = writer_.SerializeAsArray();
131 if (!bundle->ParseFromArray(buffer.data(), buffer.size()))
132 return nullptr;
133 return bundle;
134 }
135
136 private:
137 ProtoProvider(const ProtoProvider&) = delete;
138 ProtoProvider& operator=(const ProtoProvider&) = delete;
139
140 size_t chunk_size_;
141 protozero::HeapBuffered<ZeroT> writer_;
142 };
143
144 using BundleProvider = ProtoProvider<protos::pbzero::FtraceEventBundle,
145 protos::gen::FtraceEventBundle>;
146
147 class BinaryWriter {
148 public:
BinaryWriter()149 BinaryWriter()
150 : size_(base::kPageSize), page_(new uint8_t[size_]), ptr_(page_.get()) {}
151
152 template <typename T>
Write(T t)153 void Write(T t) {
154 memcpy(ptr_, &t, sizeof(T));
155 ptr_ += sizeof(T);
156 PERFETTO_CHECK(ptr_ < ptr_ + size_);
157 }
158
WriteFixedString(size_t n,const char * s)159 void WriteFixedString(size_t n, const char* s) {
160 size_t length = strlen(s);
161 PERFETTO_CHECK(length < n);
162 char c;
163 while ((c = *s++)) {
164 Write<char>(c);
165 }
166 Write<char>('\0');
167 for (size_t i = 0; i < n - length - 1; i++) {
168 Write<char>('\xff');
169 }
170 }
171
GetCopy()172 std::unique_ptr<uint8_t[]> GetCopy() {
173 std::unique_ptr<uint8_t[]> buffer(new uint8_t[written()]);
174 memcpy(buffer.get(), page_.get(), written());
175 return buffer;
176 }
177
written()178 size_t written() { return static_cast<size_t>(ptr_ - page_.get()); }
179
180 private:
181 size_t size_;
182 std::unique_ptr<uint8_t[]> page_;
183 uint8_t* ptr_;
184 };
185
186 } // namespace
187
TEST(PageFromXxdTest,OneLine)188 TEST(PageFromXxdTest, OneLine) {
189 std::string text = R"(
190 00000000: 0000 0000 0000 0000 0000 0000 0000 0000 ................
191 00000000: 0000 0000 5600 0000 0000 0000 0000 0000 ................
192 )";
193 auto page = PageFromXxd(text);
194 EXPECT_EQ(page.get()[0x14], 0x56);
195 }
196
TEST(PageFromXxdTest,ManyLines)197 TEST(PageFromXxdTest, ManyLines) {
198 std::string text = R"(
199 00000000: 1234 0000 0000 0000 0000 0000 0000 0056 ................
200 00000010: 7800 0000 0000 0000 0000 0000 0000 009a ................
201 00000020: 0000 0000 bc00 0000 00de 0000 0000 009a ................
202 )";
203 auto page = PageFromXxd(text);
204 EXPECT_EQ(page.get()[0x00], 0x12);
205 EXPECT_EQ(page.get()[0x01], 0x34);
206 EXPECT_EQ(page.get()[0x0f], 0x56);
207 EXPECT_EQ(page.get()[0x10], 0x78);
208 EXPECT_EQ(page.get()[0x1f], 0x9a);
209 EXPECT_EQ(page.get()[0x24], 0xbc);
210 EXPECT_EQ(page.get()[0x29], 0xde);
211 }
212
TEST(CpuReaderTest,BinaryWriter)213 TEST(CpuReaderTest, BinaryWriter) {
214 BinaryWriter writer;
215 writer.Write<uint64_t>(1);
216 writer.Write<uint32_t>(2);
217 writer.Write<uint16_t>(3);
218 writer.Write<uint8_t>(4);
219 auto buffer = writer.GetCopy();
220 EXPECT_EQ(buffer.get()[0], 1);
221 EXPECT_EQ(buffer.get()[1], 0);
222 EXPECT_EQ(buffer.get()[2], 0);
223 EXPECT_EQ(buffer.get()[3], 0);
224 EXPECT_EQ(buffer.get()[4], 0);
225 EXPECT_EQ(buffer.get()[5], 0);
226 EXPECT_EQ(buffer.get()[6], 0);
227 EXPECT_EQ(buffer.get()[7], 0);
228 EXPECT_EQ(buffer.get()[8], 2);
229 }
230
TEST(ReadAndAdvanceTest,Number)231 TEST(ReadAndAdvanceTest, Number) {
232 uint64_t expected = 42;
233 uint64_t actual = 0;
234 uint8_t buffer[8] = {};
235 const uint8_t* start = buffer;
236 const uint8_t* ptr = buffer;
237 memcpy(&buffer, &expected, 8);
238 EXPECT_TRUE(CpuReader::ReadAndAdvance<uint64_t>(&ptr, ptr + 8, &actual));
239 EXPECT_EQ(ptr, start + 8);
240 EXPECT_EQ(actual, expected);
241 }
242
TEST(ReadAndAdvanceTest,PlainStruct)243 TEST(ReadAndAdvanceTest, PlainStruct) {
244 struct PlainStruct {
245 uint64_t timestamp;
246 uint64_t length;
247 };
248
249 uint64_t expected[2] = {42, 999};
250 PlainStruct actual;
251 uint8_t buffer[16] = {};
252 const uint8_t* start = buffer;
253 const uint8_t* ptr = buffer;
254 memcpy(&buffer, &expected, 16);
255 EXPECT_TRUE(CpuReader::ReadAndAdvance<PlainStruct>(&ptr, ptr + 16, &actual));
256 EXPECT_EQ(ptr, start + 16);
257 EXPECT_EQ(actual.timestamp, 42ul);
258 EXPECT_EQ(actual.length, 999ul);
259 }
260
TEST(ReadAndAdvanceTest,ComplexStruct)261 TEST(ReadAndAdvanceTest, ComplexStruct) {
262 struct ComplexStruct {
263 uint64_t timestamp;
264 uint32_t length;
265 uint32_t : 24;
266 uint32_t overwrite : 8;
267 };
268
269 uint64_t expected[2] = {42, 0xcdffffffabababab};
270 ComplexStruct actual = {};
271 uint8_t buffer[16] = {};
272 const uint8_t* start = buffer;
273 const uint8_t* ptr = buffer;
274 memcpy(&buffer, &expected, 16);
275 EXPECT_TRUE(
276 CpuReader::ReadAndAdvance<ComplexStruct>(&ptr, ptr + 16, &actual));
277 EXPECT_EQ(ptr, start + 16);
278 EXPECT_EQ(actual.timestamp, 42ul);
279 EXPECT_EQ(actual.length, 0xabababab);
280 EXPECT_EQ(actual.overwrite, 0xCDu);
281 }
282
TEST(ReadAndAdvanceTest,Overruns)283 TEST(ReadAndAdvanceTest, Overruns) {
284 uint64_t result = 42;
285 uint8_t buffer[7] = {};
286 const uint8_t* start = buffer;
287 const uint8_t* ptr = buffer;
288 EXPECT_FALSE(CpuReader::ReadAndAdvance<uint64_t>(&ptr, ptr + 7, &result));
289 EXPECT_EQ(ptr, start);
290 EXPECT_EQ(result, 42ul);
291 }
292
TEST(ReadAndAdvanceTest,AtEnd)293 TEST(ReadAndAdvanceTest, AtEnd) {
294 uint8_t result = 42;
295 uint8_t buffer[8] = {};
296 const uint8_t* start = buffer;
297 const uint8_t* ptr = buffer;
298 EXPECT_FALSE(CpuReader::ReadAndAdvance<uint8_t>(&ptr, ptr, &result));
299 EXPECT_EQ(ptr, start);
300 EXPECT_EQ(result, 42);
301 }
302
TEST(ReadAndAdvanceTest,Underruns)303 TEST(ReadAndAdvanceTest, Underruns) {
304 uint64_t expected = 42;
305 uint64_t actual = 0;
306 uint8_t buffer[9] = {};
307 const uint8_t* start = buffer;
308 const uint8_t* ptr = buffer;
309 memcpy(&buffer, &expected, 8);
310 EXPECT_TRUE(CpuReader::ReadAndAdvance<uint64_t>(&ptr, ptr + 8, &actual));
311 EXPECT_EQ(ptr, start + 8);
312 EXPECT_EQ(actual, expected);
313 }
314
TEST(ParsePageHeaderTest,WithOverrun)315 TEST(ParsePageHeaderTest, WithOverrun) {
316 std::string text = R"(
317 00000000: 3ef3 db77 67a2 0100 f00f 0080 ffff ffff
318 )";
319 auto page = PageFromXxd(text);
320
321 // parse as if we're on a 32 bit kernel (4 byte "commit" field)
322 {
323 const uint8_t* ptr = page.get();
324 auto ret = CpuReader::ParsePageHeader(&ptr, 4u);
325 ASSERT_TRUE(ret.has_value());
326 CpuReader::PageHeader parsed = ret.value();
327
328 ASSERT_EQ(parsed.timestamp, 0x0001A26777DBF33Eull); // first 8 bytes
329 ASSERT_EQ(parsed.size, 0x0ff0u); // 4080
330 ASSERT_TRUE(parsed.lost_events);
331
332 // pointer advanced past the header (8+4 bytes)
333 ASSERT_EQ(ptr, page.get() + 12);
334 }
335
336 // parse as if we're on a 64 bit kernel (8 byte "commit" field)
337 {
338 const uint8_t* ptr = page.get();
339 auto ret = CpuReader::ParsePageHeader(&ptr, 8u);
340 ASSERT_TRUE(ret.has_value());
341 CpuReader::PageHeader parsed = ret.value();
342
343 ASSERT_EQ(parsed.timestamp, 0x0001A26777DBF33Eull); // first 8 bytes
344 ASSERT_EQ(parsed.size, 0x0ff0u); // 4080
345 ASSERT_TRUE(parsed.lost_events);
346
347 // pointer advanced past the header (8+8 bytes)
348 ASSERT_EQ(ptr, page.get() + 16);
349 }
350 }
351
352 // clang-format off
353 // # tracer: nop
354 // #
355 // # entries-in-buffer/entries-written: 1/1 #P:8
356 // #
357 // # _-----=> irqs-off
358 // # / _----=> need-resched
359 // # | / _---=> hardirq/softirq
360 // # || / _--=> preempt-depth
361 // # ||| / delay
362 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
363 // # | | | |||| | |
364 // sh-28712 [000] ...1 608934.535199: tracing_mark_write: Hello, world!
365 // clang-format on
366
367 static ExamplePage g_single_print{
368 "synthetic",
369 R"(
370 00000000: ba12 6a33 c628 0200 2c00 0000 0000 0000 ..j3.(..,.......
371 00000010: def0 ec67 8d21 0000 0800 0000 0500 0001 ...g.!..........
372 00000020: 2870 0000 ac5d 1661 86ff ffff 4865 6c6c (p...].a....Hell
373 00000030: 6f2c 2077 6f72 6c64 210a 00ff 0000 0000 o, world!.......
374 )",
375 };
376
TEST(CpuReaderTest,ParseSinglePrint)377 TEST(CpuReaderTest, ParseSinglePrint) {
378 const ExamplePage* test_case = &g_single_print;
379
380 BundleProvider bundle_provider(base::kPageSize);
381 ProtoTranslationTable* table = GetTable(test_case->name);
382 auto page = PageFromXxd(test_case->data);
383
384 FtraceDataSourceConfig ds_config = EmptyConfig();
385 ds_config.event_filter.AddEnabledEvent(
386 table->EventToFtraceId(GroupAndName("ftrace", "print")));
387
388 FtraceMetadata metadata{};
389 CompactSchedBuffer compact_buffer;
390 const uint8_t* parse_pos = page.get();
391 base::Optional<CpuReader::PageHeader> page_header =
392 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
393
394 const uint8_t* page_end = page.get() + base::kPageSize;
395 ASSERT_TRUE(page_header.has_value());
396 EXPECT_EQ(44ul, page_header->size);
397 EXPECT_FALSE(page_header->lost_events);
398 EXPECT_TRUE(parse_pos < page_end);
399 EXPECT_TRUE(parse_pos + page_header->size < page_end);
400
401 size_t evt_bytes = CpuReader::ParsePagePayload(
402 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
403 bundle_provider.writer(), &metadata);
404
405 EXPECT_EQ(evt_bytes, 44ul);
406
407 auto bundle = bundle_provider.ParseProto();
408 ASSERT_TRUE(bundle);
409 ASSERT_EQ(bundle->event().size(), 1u);
410 const protos::gen::FtraceEvent& event = bundle->event()[0];
411 EXPECT_EQ(event.pid(), 28712ul);
412 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 608934, 535199));
413 EXPECT_EQ(event.print().buf(), "Hello, world!\n");
414 }
415
416 // clang-format off
417 // # tracer: nop
418 // #
419 // # entries-in-buffer/entries-written: 2/2 #P:8
420 // #
421 // # _-----=> irqs-off
422 // # / _----=> need-resched
423 // # | / _---=> hardirq/softirq
424 // # || / _--=> preempt-depth
425 // # ||| / delay
426 // # TASK-PID TGID CPU# |||| TIMESTAMP FUNCTION
427 // # | | | | |||| | |
428 // echo-6908 ( 6908) [000] ...1 282762.884473: tracing_mark_write: qwertyuiopqwrtyuiopqwertyuiopqwertyuiopqwer[...]
429 // echo-6908 ( 6908) [000] ...1 282762.884492: tracing_mark_write:
430 // clang-format on
431
432 static ExamplePage g_really_long_event{
433 "synthetic",
434 R"(
435 00000000: 6be0 48dd 2b01 0100 e403 0000 0000 0000 k.H.+...........
436 00000010: 1e00 0000 0000 0000 0000 0000 c003 0000 ................
437 00000020: 0500 0001 fc1a 0000 4096 3615 9cff ffff ........@.6.....
438 00000030: 7177 6572 7479 7569 6f70 7177 7274 7975 qwertyuiopqwrtyu
439 00000040: 696f 7071 7765 7274 7975 696f 7071 7765 iopqwertyuiopqwe
440 00000050: 7274 7975 696f 7071 7765 7274 7975 696f rtyuiopqwertyuio
441 00000060: 7071 7772 7479 7569 6f70 7177 6572 7479 pqwrtyuiopqwerty
442 00000070: 7569 6f70 7177 6572 7479 7569 6f71 7765 uiopqwertyuioqwe
443 00000080: 7274 7975 696f 7071 7772 7479 7569 6f70 rtyuiopqwrtyuiop
444 00000090: 7177 6572 7479 7569 6f70 7177 6572 7479 qwertyuiopqwerty
445 000000a0: 7569 6f71 7765 7274 7975 696f 7071 7772 uioqwertyuiopqwr
446 000000b0: 7479 7569 6f70 7177 6572 7479 7569 6f70 tyuiopqwertyuiop
447 000000c0: 7177 6572 7479 7569 6f70 7070 7177 6572 qwertyuiopppqwer
448 000000d0: 7479 7569 6f70 7177 7274 7975 696f 7071 tyuiopqwrtyuiopq
449 000000e0: 7765 7274 7975 696f 7071 7765 7274 7975 wertyuiopqwertyu
450 000000f0: 696f 7071 7765 7274 7975 696f 7071 7772 iopqwertyuiopqwr
451 00000100: 7479 7569 6f70 7177 6572 7479 7569 6f70 tyuiopqwertyuiop
452 00000110: 7177 6572 7479 7569 6f71 7765 7274 7975 qwertyuioqwertyu
453 00000120: 696f 7071 7772 7479 7569 6f70 7177 6572 iopqwrtyuiopqwer
454 00000130: 7479 7569 6f70 7177 6572 7479 7569 6f71 tyuiopqwertyuioq
455 00000140: 7765 7274 7975 696f 7071 7772 7479 7569 wertyuiopqwrtyui
456 00000150: 6f70 7177 6572 7479 7569 6f70 7177 6572 opqwertyuiopqwer
457 00000160: 7479 7569 6f70 7070 7177 6572 7479 7569 tyuiopppqwertyui
458 00000170: 6f70 7177 7274 7975 696f 7071 7765 7274 opqwrtyuiopqwert
459 00000180: 7975 696f 7071 7765 7274 7975 696f 7071 yuiopqwertyuiopq
460 00000190: 7765 7274 7975 696f 7071 7772 7479 7569 wertyuiopqwrtyui
461 000001a0: 6f70 7177 6572 7479 7569 6f70 7177 6572 opqwertyuiopqwer
462 000001b0: 7479 7569 6f71 7765 7274 7975 696f 7071 tyuioqwertyuiopq
463 000001c0: 7772 7479 7569 6f70 7177 6572 7479 7569 wrtyuiopqwertyui
464 000001d0: 6f70 7177 6572 7479 7569 6f71 7765 7274 opqwertyuioqwert
465 000001e0: 7975 696f 7071 7772 7479 7569 6f70 7177 yuiopqwrtyuiopqw
466 000001f0: 6572 7479 7569 6f70 7177 6572 7479 7569 ertyuiopqwertyui
467 00000200: 6f70 7070 7177 6572 7479 7569 6f70 7177 opppqwertyuiopqw
468 00000210: 7274 7975 696f 7071 7765 7274 7975 696f rtyuiopqwertyuio
469 00000220: 7071 7765 7274 7975 696f 7071 7765 7274 pqwertyuiopqwert
470 00000230: 7975 696f 7071 7772 7479 7569 6f70 7177 yuiopqwrtyuiopqw
471 00000240: 6572 7479 7569 6f70 7177 6572 7479 7569 ertyuiopqwertyui
472 00000250: 6f71 7765 7274 7975 696f 7071 7772 7479 oqwertyuiopqwrty
473 00000260: 7569 6f70 7177 6572 7479 7569 6f70 7177 uiopqwertyuiopqw
474 00000270: 6572 7479 7569 6f71 7765 7274 7975 696f ertyuioqwertyuio
475 00000280: 7071 7772 7479 7569 6f70 7177 6572 7479 pqwrtyuiopqwerty
476 00000290: 7569 6f70 7177 6572 7479 7569 6f70 7070 uiopqwertyuioppp
477 000002a0: 7177 6572 7479 7569 6f70 7177 7274 7975 qwertyuiopqwrtyu
478 000002b0: 696f 7071 7765 7274 7975 696f 7071 7765 iopqwertyuiopqwe
479 000002c0: 7274 7975 696f 7071 7765 7274 7975 696f rtyuiopqwertyuio
480 000002d0: 7071 7772 7479 7569 6f70 7177 6572 7479 pqwrtyuiopqwerty
481 000002e0: 7569 6f70 7177 6572 7479 7569 6f71 7765 uiopqwertyuioqwe
482 000002f0: 7274 7975 696f 7071 7772 7479 7569 6f70 rtyuiopqwrtyuiop
483 00000300: 7177 6572 7479 7569 6f70 7177 6572 7479 qwertyuiopqwerty
484 00000310: 7569 6f71 7765 7274 7975 696f 7071 7772 uioqwertyuiopqwr
485 00000320: 7479 7569 6f70 7177 6572 7479 7569 6f70 tyuiopqwertyuiop
486 00000330: 7177 6572 7479 7569 6f70 7070 7177 6572 qwertyuiopppqwer
487 00000340: 7479 7569 6f70 7177 7274 7975 696f 7071 tyuiopqwrtyuiopq
488 00000350: 7765 7274 7975 696f 7071 7765 7274 7975 wertyuiopqwertyu
489 00000360: 696f 7071 7765 7274 7975 696f 7071 7772 iopqwertyuiopqwr
490 00000370: 7479 7569 6f70 7177 6572 7479 7569 6f70 tyuiopqwertyuiop
491 00000380: 7177 6572 7479 7569 6f71 7765 7274 7975 qwertyuioqwertyu
492 00000390: 696f 7071 7772 7479 7569 6f70 7177 6572 iopqwrtyuiopqwer
493 000003a0: 7479 7569 6f70 7177 6572 7479 7569 6f71 tyuiopqwertyuioq
494 000003b0: 7765 7274 7975 696f 7071 7772 7479 7569 wertyuiopqwrtyui
495 000003c0: 6f70 7177 6572 7479 7569 6f70 7177 6572 opqwertyuiopqwer
496 000003d0: 7479 7569 6f70 7070 0a00 5115 6562 0900 tyuioppp..Q.eb..
497 000003e0: 0500 0001 fc1a 0000 4096 3615 9cff ffff ........@.6.....
498 000003f0: 0a00 0000 0000 0000 0000 0000 0000 0000 ................
499 00000400: 0000 0000 0000 0000 0000 0000 0000 0000 ................
500 00000410: 0000 0000 0000 0000 0000 0000 0000 0000 ................
501 00000420: 0000 0000 0000 0000 0000 0000 0000 0000 ................
502 )",
503 };
504
TEST(CpuReaderTest,ReallyLongEvent)505 TEST(CpuReaderTest, ReallyLongEvent) {
506 const ExamplePage* test_case = &g_really_long_event;
507
508 BundleProvider bundle_provider(base::kPageSize);
509 ProtoTranslationTable* table = GetTable(test_case->name);
510 auto page = PageFromXxd(test_case->data);
511
512 FtraceDataSourceConfig ds_config = EmptyConfig();
513 ds_config.event_filter.AddEnabledEvent(
514 table->EventToFtraceId(GroupAndName("ftrace", "print")));
515
516 FtraceMetadata metadata{};
517 CompactSchedBuffer compact_buffer;
518 const uint8_t* parse_pos = page.get();
519 base::Optional<CpuReader::PageHeader> page_header =
520 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
521
522 const uint8_t* page_end = page.get() + base::kPageSize;
523 ASSERT_TRUE(page_header.has_value());
524 EXPECT_FALSE(page_header->lost_events);
525 EXPECT_TRUE(parse_pos < page_end);
526 EXPECT_TRUE(parse_pos + page_header->size < page_end);
527
528 CpuReader::ParsePagePayload(parse_pos, &page_header.value(), table,
529 &ds_config, &compact_buffer,
530 bundle_provider.writer(), &metadata);
531
532 auto bundle = bundle_provider.ParseProto();
533 ASSERT_TRUE(bundle);
534 const protos::gen::FtraceEvent& long_print = bundle->event()[0];
535 EXPECT_THAT(long_print.print().buf(), StartsWith("qwerty"));
536 EXPECT_THAT(long_print.print().buf(), EndsWith("ppp\n"));
537 const protos::gen::FtraceEvent& newline = bundle->event()[1];
538 EXPECT_EQ(newline.print().buf(), "\n");
539 }
540
541 // This event is as the event for ParseSinglePrint above except the string
542 // is extended to overflow the page size written in the header.
543 static ExamplePage g_single_print_malformed{
544 "synthetic",
545 R"(
546 00000000: ba12 6a33 c628 0200 2c00 0000 0000 0000 ................
547 00000010: def0 ec67 8d21 0000 0800 0000 0500 0001 ................
548 00000020: 2870 0000 ac5d 1661 86ff ffff 4865 6c6c ................
549 00000030: 6f2c 2077 6f72 6c64 2120 776f 726c 6421 ................
550 00000040: 0a00 ff00 0000 0000 0000 0000 0000 0000 ................
551 )",
552 };
553
TEST(CpuReaderTest,ParseSinglePrintMalformed)554 TEST(CpuReaderTest, ParseSinglePrintMalformed) {
555 const ExamplePage* test_case = &g_single_print_malformed;
556
557 BundleProvider bundle_provider(base::kPageSize);
558 ProtoTranslationTable* table = GetTable(test_case->name);
559 auto page = PageFromXxd(test_case->data);
560
561 FtraceDataSourceConfig ds_config = EmptyConfig();
562 ds_config.event_filter.AddEnabledEvent(
563 table->EventToFtraceId(GroupAndName("ftrace", "print")));
564
565 FtraceMetadata metadata{};
566 CompactSchedBuffer compact_buffer;
567 const uint8_t* parse_pos = page.get();
568 base::Optional<CpuReader::PageHeader> page_header =
569 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
570
571 const uint8_t* page_end = page.get() + base::kPageSize;
572 ASSERT_TRUE(page_header.has_value());
573 EXPECT_FALSE(page_header->lost_events);
574 EXPECT_TRUE(parse_pos < page_end);
575 EXPECT_TRUE(parse_pos + page_header->size < page_end);
576
577 size_t evt_bytes = CpuReader::ParsePagePayload(
578 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
579 bundle_provider.writer(), &metadata);
580
581 ASSERT_EQ(0u, evt_bytes);
582
583 auto bundle = bundle_provider.ParseProto();
584 ASSERT_TRUE(bundle);
585 ASSERT_EQ(bundle->event().size(), 1u);
586 // Although one field is malformed we still see data for the rest
587 // since we write the fields as we parse them for speed.
588 const protos::gen::FtraceEvent& event = bundle->event()[0];
589 EXPECT_EQ(event.pid(), 28712ul);
590 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 608934, 535199));
591 EXPECT_EQ(event.print().buf(), "");
592 }
593
TEST(CpuReaderTest,FilterByEvent)594 TEST(CpuReaderTest, FilterByEvent) {
595 const ExamplePage* test_case = &g_single_print;
596
597 BundleProvider bundle_provider(base::kPageSize);
598 ProtoTranslationTable* table = GetTable(test_case->name);
599 auto page = PageFromXxd(test_case->data);
600
601 FtraceDataSourceConfig ds_config = EmptyConfig();
602
603 FtraceMetadata metadata{};
604 CompactSchedBuffer compact_buffer;
605 const uint8_t* parse_pos = page.get();
606 base::Optional<CpuReader::PageHeader> page_header =
607 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
608
609 ASSERT_TRUE(page_header.has_value());
610 EXPECT_FALSE(page_header->lost_events);
611
612 size_t evt_bytes = CpuReader::ParsePagePayload(
613 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
614 bundle_provider.writer(), &metadata);
615
616 EXPECT_LT(0u, evt_bytes);
617
618 auto bundle = bundle_provider.ParseProto();
619 ASSERT_TRUE(bundle);
620 ASSERT_EQ(bundle->event().size(), 0u);
621 }
622
623 // clang-format off
624 // # tracer: nop
625 // #
626 // # entries-in-buffer/entries-written: 3/3 #P:8
627 // #
628 // # _-----=> irqs-off
629 // # / _----=> need-resched
630 // # | / _---=> hardirq/softirq
631 // # || / _--=> preempt-depth
632 // # ||| / delay
633 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
634 // # | | | |||| | |
635 // sh-30693 [000] ...1 615436.216806: tracing_mark_write: Hello, world!
636 // sh-30693 [000] ...1 615486.377232: tracing_mark_write: Good afternoon, world!
637 // sh-30693 [000] ...1 615495.632679: tracing_mark_write: Goodbye, world!
638 // clang-format on
639
640 static ExamplePage g_three_prints{
641 "synthetic",
642 R"(
643 00000000: a3ab 1569 bc2f 0200 9400 0000 0000 0000 ...i./..........
644 00000010: 1e00 0000 0000 0000 0800 0000 0500 0001 ................
645 00000020: e577 0000 ac5d 1661 86ff ffff 4865 6c6c .w...].a....Hell
646 00000030: 6f2c 2077 6f72 6c64 210a 0000 5e32 6bb9 o, world!...^2k.
647 00000040: 7501 0000 0b00 0000 0500 0001 e577 0000 u............w..
648 00000050: ac5d 1661 86ff ffff 476f 6f64 2061 6674 .].a....Good aft
649 00000060: 6572 6e6f 6f6e 2c20 776f 726c 6421 0a00 ernoon, world!..
650 00000070: 0000 0000 9e6a 5df5 4400 0000 0900 0000 .....j].D.......
651 00000080: 0500 0001 e577 0000 ac5d 1661 86ff ffff .....w...].a....
652 00000090: 476f 6f64 6279 652c 2077 6f72 6c64 210a Goodbye, world!.
653 000000a0: 0051 0000 0000 0000 0000 0000 0000 0000 .Q..............
654 )",
655 };
656
TEST(CpuReaderTest,ParseThreePrint)657 TEST(CpuReaderTest, ParseThreePrint) {
658 const ExamplePage* test_case = &g_three_prints;
659
660 BundleProvider bundle_provider(base::kPageSize);
661 ProtoTranslationTable* table = GetTable(test_case->name);
662 auto page = PageFromXxd(test_case->data);
663
664 FtraceDataSourceConfig ds_config = EmptyConfig();
665 ds_config.event_filter.AddEnabledEvent(
666 table->EventToFtraceId(GroupAndName("ftrace", "print")));
667
668 FtraceMetadata metadata{};
669 CompactSchedBuffer compact_buffer;
670 const uint8_t* parse_pos = page.get();
671 base::Optional<CpuReader::PageHeader> page_header =
672 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
673
674 const uint8_t* page_end = page.get() + base::kPageSize;
675 ASSERT_TRUE(page_header.has_value());
676 EXPECT_FALSE(page_header->lost_events);
677 EXPECT_TRUE(parse_pos < page_end);
678 EXPECT_TRUE(parse_pos + page_header->size < page_end);
679
680 size_t evt_bytes = CpuReader::ParsePagePayload(
681 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
682 bundle_provider.writer(), &metadata);
683
684 EXPECT_LT(0u, evt_bytes);
685
686 auto bundle = bundle_provider.ParseProto();
687 ASSERT_TRUE(bundle);
688 ASSERT_EQ(bundle->event().size(), 3u);
689
690 {
691 const protos::gen::FtraceEvent& event = bundle->event()[0];
692 EXPECT_EQ(event.pid(), 30693ul);
693 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 615436, 216806));
694 EXPECT_EQ(event.print().buf(), "Hello, world!\n");
695 }
696
697 {
698 const protos::gen::FtraceEvent& event = bundle->event()[1];
699 EXPECT_EQ(event.pid(), 30693ul);
700 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 615486, 377232));
701 EXPECT_EQ(event.print().buf(), "Good afternoon, world!\n");
702 }
703
704 {
705 const protos::gen::FtraceEvent& event = bundle->event()[2];
706 EXPECT_EQ(event.pid(), 30693ul);
707 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 615495, 632679));
708 EXPECT_EQ(event.print().buf(), "Goodbye, world!\n");
709 }
710 }
711
712 // clang-format off
713 // # tracer: nop
714 // #
715 // # entries-in-buffer/entries-written: 6/6 #P:8
716 // #
717 // # _-----=> irqs-off
718 // # / _----=> need-resched
719 // # | / _---=> hardirq/softirq
720 // # || / _--=> preempt-depth
721 // # ||| / delay
722 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
723 // # | | | |||| | |
724 // ksoftirqd/0-3 [000] d..3 1045157.722134: sched_switch: prev_comm=ksoftirqd/0 prev_pid=3 prev_prio=120 prev_state=S ==> next_comm=sleep next_pid=3733 next_prio=120
725 // sleep-3733 [000] d..3 1045157.725035: sched_switch: prev_comm=sleep prev_pid=3733 prev_prio=120 prev_state=R+ ==> next_comm=rcuop/0 next_pid=10 next_prio=120
726 // rcu_preempt-7 [000] d..3 1045157.725182: sched_switch: prev_comm=rcu_preempt prev_pid=7 prev_prio=120 prev_state=S ==> next_comm=sleep next_pid=3733 next_prio=120
727 // sleep-3733 [000] d..3 1045157.725671: sched_switch: prev_comm=sleep prev_pid=3733 prev_prio=120 prev_state=R+ ==> next_comm=sh next_pid=3513 next_prio=120
728 // sh-3513 [000] d..3 1045157.726668: sched_switch: prev_comm=sh prev_pid=3513 prev_prio=120 prev_state=S ==> next_comm=sleep next_pid=3733 next_prio=120
729 // sleep-3733 [000] d..3 1045157.726697: sched_switch: prev_comm=sleep prev_pid=3733 prev_prio=120 prev_state=x ==> next_comm=kworker/u16:3 next_pid=3681 next_prio=120
730 // clang-format on
731
732 static ExamplePage g_six_sched_switch{
733 "synthetic",
734 R"(
735 00000000: 2b16 c3be 90b6 0300 a001 0000 0000 0000 +...............
736 00000010: 1e00 0000 0000 0000 1000 0000 2f00 0103 ............/...
737 00000020: 0300 0000 6b73 6f66 7469 7271 642f 3000 ....ksoftirqd/0.
738 00000030: 0000 0000 0300 0000 7800 0000 0100 0000 ........x.......
739 00000040: 0000 0000 736c 6565 7000 722f 3000 0000 ....sleep.r/0...
740 00000050: 0000 0000 950e 0000 7800 0000 b072 8805 ........x....r..
741 00000060: 2f00 0103 950e 0000 736c 6565 7000 722f /.......sleep.r/
742 00000070: 3000 0000 0000 0000 950e 0000 7800 0000 0...........x...
743 00000080: 0008 0000 0000 0000 7263 756f 702f 3000 ........rcuop/0.
744 00000090: 0000 0000 0000 0000 0a00 0000 7800 0000 ............x...
745 000000a0: f0b0 4700 2f00 0103 0700 0000 7263 755f ..G./.......rcu_
746 000000b0: 7072 6565 6d70 7400 0000 0000 0700 0000 preempt.........
747 000000c0: 7800 0000 0100 0000 0000 0000 736c 6565 x...........slee
748 000000d0: 7000 722f 3000 0000 0000 0000 950e 0000 p.r/0...........
749 000000e0: 7800 0000 1001 ef00 2f00 0103 950e 0000 x......./.......
750 000000f0: 736c 6565 7000 722f 3000 0000 0000 0000 sleep.r/0.......
751 00000100: 950e 0000 7800 0000 0008 0000 0000 0000 ....x...........
752 00000110: 7368 0064 0065 722f 3000 0000 0000 0000 sh.d.er/0.......
753 00000120: b90d 0000 7800 0000 f0c7 e601 2f00 0103 ....x......./...
754 00000130: b90d 0000 7368 0064 0065 722f 3000 0000 ....sh.d.er/0...
755 00000140: 0000 0000 b90d 0000 7800 0000 0100 0000 ........x.......
756 00000150: 0000 0000 736c 6565 7000 722f 3000 0000 ....sleep.r/0...
757 00000160: 0000 0000 950e 0000 7800 0000 d030 0e00 ........x....0..
758 00000170: 2f00 0103 950e 0000 736c 6565 7000 722f /.......sleep.r/
759 00000180: 3000 0000 0000 0000 950e 0000 7800 0000 0...........x...
760 00000190: 4000 0000 0000 0000 6b77 6f72 6b65 722f @.......kworker/
761 000001a0: 7531 363a 3300 0000 610e 0000 7800 0000 u16:3...a...x...
762 000001b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
763 )",
764 };
765
TEST(CpuReaderTest,ParseSixSchedSwitch)766 TEST(CpuReaderTest, ParseSixSchedSwitch) {
767 const ExamplePage* test_case = &g_six_sched_switch;
768
769 BundleProvider bundle_provider(base::kPageSize);
770 ProtoTranslationTable* table = GetTable(test_case->name);
771 auto page = PageFromXxd(test_case->data);
772
773 FtraceDataSourceConfig ds_config = EmptyConfig();
774 ds_config.event_filter.AddEnabledEvent(
775 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
776
777 FtraceMetadata metadata{};
778 CompactSchedBuffer compact_buffer;
779 const uint8_t* parse_pos = page.get();
780 base::Optional<CpuReader::PageHeader> page_header =
781 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
782
783 const uint8_t* page_end = page.get() + base::kPageSize;
784 ASSERT_TRUE(page_header.has_value());
785 EXPECT_FALSE(page_header->lost_events);
786 EXPECT_TRUE(parse_pos < page_end);
787 EXPECT_TRUE(parse_pos + page_header->size < page_end);
788
789 size_t evt_bytes = CpuReader::ParsePagePayload(
790 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
791 bundle_provider.writer(), &metadata);
792
793 EXPECT_LT(0u, evt_bytes);
794
795 auto bundle = bundle_provider.ParseProto();
796 ASSERT_TRUE(bundle);
797 ASSERT_EQ(bundle->event().size(), 6u);
798
799 {
800 const protos::gen::FtraceEvent& event = bundle->event()[1];
801 EXPECT_EQ(event.pid(), 3733ul);
802 EXPECT_TRUE(WithinOneMicrosecond(event.timestamp(), 1045157, 725035));
803 EXPECT_EQ(event.sched_switch().prev_comm(), "sleep");
804 EXPECT_EQ(event.sched_switch().prev_pid(), 3733);
805 EXPECT_EQ(event.sched_switch().prev_prio(), 120);
806 EXPECT_EQ(event.sched_switch().next_comm(), "rcuop/0");
807 EXPECT_EQ(event.sched_switch().next_pid(), 10);
808 EXPECT_EQ(event.sched_switch().next_prio(), 120);
809 }
810 }
811
TEST(CpuReaderTest,ParseSixSchedSwitchCompactFormat)812 TEST(CpuReaderTest, ParseSixSchedSwitchCompactFormat) {
813 const ExamplePage* test_case = &g_six_sched_switch;
814
815 BundleProvider bundle_provider(base::kPageSize);
816 ProtoTranslationTable* table = GetTable(test_case->name);
817 auto page = PageFromXxd(test_case->data);
818
819 FtraceDataSourceConfig ds_config{EventFilter{},
820 EnabledCompactSchedConfigForTesting(),
821 {},
822 {},
823 false /* symbolize_ksyms*/};
824 ds_config.event_filter.AddEnabledEvent(
825 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
826
827 FtraceMetadata metadata{};
828 CompactSchedBuffer compact_buffer;
829 const uint8_t* parse_pos = page.get();
830 base::Optional<CpuReader::PageHeader> page_header =
831 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
832
833 const uint8_t* page_end = page.get() + base::kPageSize;
834 ASSERT_TRUE(page_header.has_value());
835 EXPECT_FALSE(page_header->lost_events);
836 EXPECT_TRUE(parse_pos < page_end);
837 EXPECT_TRUE(parse_pos + page_header->size < page_end);
838
839 size_t evt_bytes = CpuReader::ParsePagePayload(
840 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
841 bundle_provider.writer(), &metadata);
842
843 EXPECT_LT(0u, evt_bytes);
844
845 // Nothing written into the proto yet:
846 auto bundle = bundle_provider.ParseProto();
847 ASSERT_TRUE(bundle);
848 EXPECT_EQ(0u, bundle->event().size());
849 EXPECT_FALSE(bundle->has_compact_sched());
850 bundle_provider.ResetWriter();
851
852 // Instead, sched switch fields were buffered:
853 EXPECT_LT(0u, compact_buffer.sched_switch().size());
854 EXPECT_LT(0u, compact_buffer.interner().interned_comms_size());
855
856 // Write the buffer out & check the serialized format:
857 compact_buffer.WriteAndReset(bundle_provider.writer());
858 bundle_provider.writer()->Finalize();
859 bundle = bundle_provider.ParseProto();
860 ASSERT_TRUE(bundle);
861
862 const auto& compact_sched = bundle->compact_sched();
863
864 EXPECT_EQ(6u, compact_sched.switch_timestamp().size());
865 EXPECT_EQ(6u, compact_sched.switch_prev_state().size());
866 EXPECT_EQ(6u, compact_sched.switch_next_pid().size());
867 EXPECT_EQ(6u, compact_sched.switch_next_prio().size());
868 // 4 unique interned next_comm strings:
869 EXPECT_EQ(4u, compact_sched.intern_table().size());
870 EXPECT_EQ(6u, compact_sched.switch_next_comm_index().size());
871
872 // First event exactly as expected (absolute timestamp):
873 EXPECT_TRUE(WithinOneMicrosecond(compact_sched.switch_timestamp()[0], 1045157,
874 722134));
875 EXPECT_EQ(1, compact_sched.switch_prev_state()[0]);
876 EXPECT_EQ(3733, compact_sched.switch_next_pid()[0]);
877 EXPECT_EQ(120, compact_sched.switch_next_prio()[0]);
878 auto comm_intern_idx = compact_sched.switch_next_comm_index()[0];
879 std::string next_comm = compact_sched.intern_table()[comm_intern_idx];
880 EXPECT_EQ("sleep", next_comm);
881 }
882
TEST_F(CpuReaderTableTest,ParseAllFields)883 TEST_F(CpuReaderTableTest, ParseAllFields) {
884 using FakeEventProvider =
885 ProtoProvider<pbzero::FakeFtraceEvent, gen::FakeFtraceEvent>;
886
887 uint16_t ftrace_event_id = 102;
888
889 std::vector<Field> common_fields;
890 {
891 common_fields.emplace_back(Field{});
892 Field* field = &common_fields.back();
893 field->ftrace_offset = 0;
894 field->ftrace_size = 4;
895 field->ftrace_type = kFtraceUint32;
896 field->proto_field_id = 1;
897 field->proto_field_type = ProtoSchemaType::kUint32;
898 SetTranslationStrategy(field->ftrace_type, field->proto_field_type,
899 &field->strategy);
900 }
901
902 {
903 common_fields.emplace_back(Field{});
904 Field* field = &common_fields.back();
905 field->ftrace_offset = 4;
906 field->ftrace_size = 4;
907 field->ftrace_type = kFtraceCommonPid32;
908 field->proto_field_id = 2;
909 field->proto_field_type = ProtoSchemaType::kInt32;
910 SetTranslationStrategy(field->ftrace_type, field->proto_field_type,
911 &field->strategy);
912 }
913
914 std::vector<Event> events;
915 events.emplace_back(Event{});
916 {
917 Event* event = &events.back();
918 event->name = "";
919 event->group = "";
920 event->proto_field_id = 42;
921 event->ftrace_event_id = ftrace_event_id;
922
923 {
924 // uint32 -> uint32
925 event->fields.emplace_back(Field{});
926 Field* field = &event->fields.back();
927 field->ftrace_offset = 8;
928 field->ftrace_size = 4;
929 field->ftrace_type = kFtraceUint32;
930 field->proto_field_id = 1;
931 field->proto_field_type = ProtoSchemaType::kUint32;
932 }
933
934 {
935 // pid32 -> uint32
936 event->fields.emplace_back(Field{});
937 Field* field = &event->fields.back();
938 field->ftrace_offset = 12;
939 field->ftrace_size = 4;
940 field->ftrace_type = kFtracePid32;
941 field->proto_field_id = 2;
942 field->proto_field_type = ProtoSchemaType::kInt32;
943 }
944
945 {
946 // dev32 -> uint64
947 event->fields.emplace_back(Field{});
948 Field* field = &event->fields.back();
949 field->ftrace_offset = 16;
950 field->ftrace_size = 4;
951 field->ftrace_type = kFtraceDevId32;
952 field->proto_field_id = 3;
953 field->proto_field_type = ProtoSchemaType::kUint64;
954 }
955
956 {
957 // ino_t (32bit) -> uint64
958 event->fields.emplace_back(Field{});
959 Field* field = &event->fields.back();
960 field->ftrace_offset = 20;
961 field->ftrace_size = 4;
962 field->ftrace_type = kFtraceInode32;
963 field->proto_field_id = 4;
964 field->proto_field_type = ProtoSchemaType::kUint64;
965 }
966
967 {
968 // dev64 -> uint64
969 event->fields.emplace_back(Field{});
970 Field* field = &event->fields.back();
971 field->ftrace_offset = 24;
972 field->ftrace_size = 8;
973 field->ftrace_type = kFtraceDevId64;
974 field->proto_field_id = 5;
975 field->proto_field_type = ProtoSchemaType::kUint64;
976 }
977
978 {
979 // ino_t (64bit) -> uint64
980 event->fields.emplace_back(Field{});
981 Field* field = &event->fields.back();
982 field->ftrace_offset = 32;
983 field->ftrace_size = 8;
984 field->ftrace_type = kFtraceInode64;
985 field->proto_field_id = 6;
986 field->proto_field_type = ProtoSchemaType::kUint64;
987 }
988
989 {
990 // char[16] -> string
991 event->fields.emplace_back(Field{});
992 Field* field = &event->fields.back();
993 field->ftrace_offset = 40;
994 field->ftrace_size = 16;
995 field->ftrace_type = kFtraceFixedCString;
996 field->proto_field_id = 500;
997 field->proto_field_type = ProtoSchemaType::kString;
998 }
999
1000 {
1001 // char* -> string
1002 event->fields.emplace_back(Field{});
1003 Field* field = &event->fields.back();
1004 field->ftrace_offset = 56;
1005 field->ftrace_size = 8;
1006 field->ftrace_type = kFtraceStringPtr;
1007 field->proto_field_id = 503;
1008 field->proto_field_type = ProtoSchemaType::kString;
1009 }
1010
1011 {
1012 // dataloc -> string
1013 event->fields.emplace_back(Field{});
1014 Field* field = &event->fields.back();
1015 field->ftrace_offset = 65;
1016 field->ftrace_size = 4;
1017 field->ftrace_type = kFtraceDataLoc;
1018 field->proto_field_id = 502;
1019 field->proto_field_type = ProtoSchemaType::kString;
1020 }
1021
1022 {
1023 // char -> string
1024 event->fields.emplace_back(Field{});
1025 Field* field = &event->fields.back();
1026 field->ftrace_offset = 69;
1027 field->ftrace_size = 0;
1028 field->ftrace_type = kFtraceCString;
1029 field->proto_field_id = 501;
1030 field->proto_field_type = ProtoSchemaType::kString;
1031 }
1032
1033 for (Field& field : event->fields) {
1034 SetTranslationStrategy(field.ftrace_type, field.proto_field_type,
1035 &field.strategy);
1036 }
1037 }
1038
1039 PrintkMap printk_formats;
1040 printk_formats.insert(0xffffff8504f51b23, "my_printk_format_string");
1041 ProtoTranslationTable table(
1042 &ftrace_, events, std::move(common_fields),
1043 ProtoTranslationTable::DefaultPageHeaderSpecForTesting(),
1044 InvalidCompactSchedEventFormatForTesting(), printk_formats);
1045
1046 FakeEventProvider provider(base::kPageSize);
1047
1048 BinaryWriter writer;
1049
1050 // Must use the bit masks to translate between kernel and userspace device ids
1051 // to generate the below examples
1052 const uint32_t kKernelBlockDeviceId = 271581216;
1053
1054 const BlockDeviceID kUserspaceBlockDeviceId =
1055 CpuReader::TranslateBlockDeviceIDToUserspace<BlockDeviceID>(
1056 kKernelBlockDeviceId);
1057 const uint64_t k64BitKernelBlockDeviceId = 4442450946;
1058 const BlockDeviceID k64BitUserspaceBlockDeviceId =
1059 CpuReader::TranslateBlockDeviceIDToUserspace<uint64_t>(
1060 k64BitKernelBlockDeviceId);
1061
1062 writer.Write<int32_t>(1001); // Common field.
1063 writer.Write<int32_t>(9999); // Common pid
1064 writer.Write<int32_t>(1003); // Uint32 field
1065 writer.Write<int32_t>(97); // Pid
1066 writer.Write<int32_t>(kKernelBlockDeviceId); // Dev id
1067 writer.Write<int32_t>(98); // Inode 32
1068 writer.Write<int64_t>(k64BitKernelBlockDeviceId); // Dev id 64
1069 writer.Write<int64_t>(99u); // Inode 64
1070 writer.WriteFixedString(16, "Hello");
1071 writer.Write<uint64_t>(0xffffff8504f51b23ULL); // char* (printk formats)
1072 writer.Write<uint8_t>(0); // Deliberately mis-aligning.
1073 writer.Write<uint32_t>(40 | 6 << 16);
1074 writer.WriteFixedString(300, "Goodbye");
1075
1076 auto input = writer.GetCopy();
1077 auto length = writer.written();
1078 FtraceMetadata metadata{};
1079
1080 ASSERT_TRUE(CpuReader::ParseEvent(ftrace_event_id, input.get(),
1081 input.get() + length, &table,
1082 provider.writer(), &metadata));
1083
1084 auto event = provider.ParseProto();
1085 ASSERT_TRUE(event);
1086 EXPECT_EQ(event->common_field(), 1001ul);
1087 EXPECT_EQ(event->common_pid(), 9999ul);
1088 EXPECT_TRUE(event->has_all_fields());
1089 EXPECT_EQ(event->all_fields().field_uint32(), 1003u);
1090 EXPECT_EQ(event->all_fields().field_pid(), 97);
1091 EXPECT_EQ(event->all_fields().field_dev_32(),
1092 static_cast<uint32_t>(kUserspaceBlockDeviceId));
1093 EXPECT_EQ(event->all_fields().field_inode_32(), 98u);
1094 // TODO(primiano): for some reason this fails on mac.
1095 #if !PERFETTO_BUILDFLAG(PERFETTO_OS_APPLE)
1096 EXPECT_EQ(event->all_fields().field_dev_64(), k64BitUserspaceBlockDeviceId);
1097 #endif
1098 EXPECT_EQ(event->all_fields().field_inode_64(), 99u);
1099 EXPECT_EQ(event->all_fields().field_char_16(), "Hello");
1100 EXPECT_EQ(event->all_fields().field_char(), "Goodbye");
1101 EXPECT_EQ(event->all_fields().field_data_loc(), "Hello");
1102 EXPECT_EQ(event->all_fields().field_char_star(), "my_printk_format_string");
1103 EXPECT_THAT(metadata.pids, Contains(97));
1104 EXPECT_EQ(metadata.inode_and_device.size(), 2U);
1105 EXPECT_THAT(metadata.inode_and_device,
1106 Contains(Pair(98u, kUserspaceBlockDeviceId)));
1107 EXPECT_THAT(metadata.inode_and_device,
1108 Contains(Pair(99u, k64BitUserspaceBlockDeviceId)));
1109 }
1110
TEST(CpuReaderTest,TaskRenameEvent)1111 TEST(CpuReaderTest, TaskRenameEvent) {
1112 BundleProvider bundle_provider(base::kPageSize);
1113
1114 BinaryWriter writer;
1115 ProtoTranslationTable* table = GetTable("android_seed_N2F62_3.10.49");
1116
1117 constexpr uint32_t kTaskRenameId = 19;
1118
1119 writer.Write<int32_t>(1001); // Common field.
1120 writer.Write<int32_t>(9999); // Common pid
1121 writer.Write<int32_t>(9999); // Pid
1122 writer.WriteFixedString(16, "Hello"); // Old Comm
1123 writer.WriteFixedString(16, "Goodbye"); // New Comm
1124 writer.Write<uint64_t>(10); // flags
1125 writer.Write<int16_t>(10); // oom_score_adj
1126
1127 auto input = writer.GetCopy();
1128 auto length = writer.written();
1129 FtraceMetadata metadata{};
1130
1131 ASSERT_TRUE(CpuReader::ParseEvent(kTaskRenameId, input.get(),
1132 input.get() + length, table,
1133 bundle_provider.writer(), &metadata));
1134 EXPECT_THAT(metadata.rename_pids, Contains(9999));
1135 EXPECT_THAT(metadata.pids, Contains(9999));
1136 }
1137
1138 // Page with a single sched_switch, no data loss.
1139 static char g_switch_page[] =
1140 R"(
1141 00000000: 2b16 c3be 90b6 0300 4c00 0000 0000 0000 ................
1142 00000010: 1e00 0000 0000 0000 1000 0000 2f00 0103 ................
1143 00000020: 0300 0000 6b73 6f66 7469 7271 642f 3000 ................
1144 00000030: 0000 0000 0300 0000 7800 0000 0100 0000 ................
1145 00000040: 0000 0000 736c 6565 7000 722f 3000 0000 ................
1146 00000050: 0000 0000 950e 0000 7800 0000 0000 0000 ................
1147 )";
1148
1149 // Page with a single sched_switch, header has data loss flag set.
1150 static char g_switch_page_lost_events[] =
1151 R"(
1152 00000000: 2b16 c3be 90b6 0300 4c00 0080 ffff ffff ................
1153 00000010: 1e00 0000 0000 0000 1000 0000 2f00 0103 ................
1154 00000020: 0300 0000 6b73 6f66 7469 7271 642f 3000 ................
1155 00000030: 0000 0000 0300 0000 7800 0000 0100 0000 ................
1156 00000040: 0000 0000 736c 6565 7000 722f 3000 0000 ................
1157 00000050: 0000 0000 950e 0000 7800 0000 0000 0000 ................
1158 )";
1159
TEST(CpuReaderTest,NewPacketOnLostEvents)1160 TEST(CpuReaderTest, NewPacketOnLostEvents) {
1161 auto page_ok = PageFromXxd(g_switch_page);
1162 auto page_loss = PageFromXxd(g_switch_page_lost_events);
1163
1164 std::vector<const void*> test_page_order = {
1165 page_ok.get(), page_ok.get(), page_ok.get(), page_loss.get(),
1166 page_loss.get(), page_ok.get(), page_ok.get(), page_ok.get()};
1167
1168 // Prepare a buffer with 8 contiguous pages, with the above contents.
1169 static constexpr size_t kTestPages = 8;
1170 uint8_t buf[base::kPageSize * kTestPages] = {};
1171 for (size_t i = 0; i < kTestPages; i++) {
1172 void* dest = buf + (i * base::kPageSize);
1173 memcpy(dest, static_cast<const void*>(test_page_order[i]), base::kPageSize);
1174 }
1175
1176 BundleProvider bundle_provider(base::kPageSize);
1177 ProtoTranslationTable* table = GetTable("synthetic");
1178 FtraceMetadata metadata{};
1179 FtraceDataSourceConfig ds_config = EmptyConfig();
1180 ds_config.event_filter.AddEnabledEvent(
1181 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
1182
1183 TraceWriterForTesting trace_writer;
1184 CpuReader::ProcessPagesForDataSource(&trace_writer, &metadata, /*cpu=*/1,
1185 &ds_config, buf, kTestPages, table,
1186 /*symbolizer=*/nullptr);
1187
1188 // Each packet should contain the parsed contents of a contiguous run of pages
1189 // without data loss.
1190 // So we should get three packets (each page has 1 event):
1191 // [3 events] [1 event] [4 events].
1192 auto packets = trace_writer.GetAllTracePackets();
1193
1194 ASSERT_EQ(3u, packets.size());
1195 EXPECT_FALSE(packets[0].ftrace_events().lost_events());
1196 EXPECT_EQ(3u, packets[0].ftrace_events().event().size());
1197
1198 EXPECT_TRUE(packets[1].ftrace_events().lost_events());
1199 EXPECT_EQ(1u, packets[1].ftrace_events().event().size());
1200
1201 EXPECT_TRUE(packets[2].ftrace_events().lost_events());
1202 EXPECT_EQ(4u, packets[2].ftrace_events().event().size());
1203 }
1204
1205 // Page containing an absolute timestamp (RINGBUF_TYPE_TIME_STAMP).
1206 static char g_abs_timestamp[] =
1207 R"(
1208 00000000: 8949 fbfb 38e4 0400 6407 0000 0000 0000 .I..8...d.......
1209 00000010: 5032 0a2d 3b01 0100 0000 0000 7377 6170 P2.-;.......swap
1210 00000020: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1211 00000030: 7800 0000 0000 0000 0000 0000 6776 6673 x...........gvfs
1212 00000040: 2d61 6663 2d76 6f6c 756d 6500 6483 0000 -afc-volume.d...
1213 00000050: 7800 0000 f0de 1700 3b01 0100 6483 0000 x.......;...d...
1214 00000060: 6776 6673 2d61 6663 2d76 6f6c 756d 6500 gvfs-afc-volume.
1215 00000070: 6483 0000 7800 0000 0100 0000 0000 0000 d...x...........
1216 00000080: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1217 00000090: 0000 0000 7800 0000 aaa1 5c08 0401 1100 ....x.....\.....
1218 000000a0: 0000 0000 88fc 31eb 029f ffff 609e d3c0 ......1.....`...
1219 000000b0: ffff ffff 0076 b4a1 029f ffff 0020 0000 .....v....... ..
1220 000000c0: ffff ffff e477 1700 0301 1100 0000 0000 .....w..........
1221 000000d0: 88fc 31eb 029f ffff aa26 0100 3e01 1100 ..1......&..>...
1222 000000e0: 0000 0000 6b77 6f72 6b65 722f 7538 3a35 ....kworker/u8:5
1223 000000f0: 0000 0000 24c0 0c00 7800 0000 0100 0000 ....$...x.......
1224 00000100: 0300 0000 90e6 e700 3b01 0100 0000 0000 ........;.......
1225 00000110: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1226 00000120: 0000 0000 7800 0000 0000 0000 0000 0000 ....x...........
1227 00000130: 6b77 6f72 6b65 722f 7538 3a35 0000 0000 kworker/u8:5....
1228 00000140: 24c0 0c00 7800 0000 aa56 0300 3e01 0100 $...x....V..>...
1229 00000150: 24c0 0c00 6b77 6f72 6b65 722f 7538 3a31 $...kworker/u8:1
1230 00000160: 0000 0000 8eb5 0c00 7800 0000 0100 0000 ........x.......
1231 00000170: 0300 0000 06eb 0300 0201 0000 24c0 0c00 ............$...
1232 00000180: 6026 f22a 049f ffff f0e4 4cc0 ffff ffff `&.*......L.....
1233 00000190: ca45 0f00 3e01 0100 24c0 0c00 646d 6372 .E..>...$...dmcr
1234 000001a0: 7970 745f 7772 6974 652f 3200 2601 0000 ypt_write/2.&...
1235 000001b0: 7800 0000 0100 0000 0100 0000 c617 0200 x...............
1236 000001c0: 0101 0000 24c0 0c00 6026 f22a 049f ffff ....$...`&.*....
1237 000001d0: f0e4 4cc0 ffff ffff a47c 0000 0301 0100 ..L......|......
1238 000001e0: 24c0 0c00 6015 f22a 049f ffff 0685 0000 $...`..*........
1239 000001f0: 0201 0000 24c0 0c00 a05d f22a 049f ffff ....$....].*....
1240 00000200: f0e4 4cc0 ffff ffff c6dd 0800 0101 0000 ..L.............
1241 00000210: 24c0 0c00 a05d f22a 049f ffff f0e4 4cc0 $....].*......L.
1242 00000220: ffff ffff 8444 0000 0301 0100 24c0 0c00 .....D......$...
1243 00000230: 6059 f22a 049f ffff e672 0000 0201 0000 `Y.*.....r......
1244 00000240: 24c0 0c00 e050 f22a 049f ffff f0e4 4cc0 $....P.*......L.
1245 00000250: ffff ffff 4673 0a00 0101 0000 24c0 0c00 ....Fs......$...
1246 00000260: e050 f22a 049f ffff f0e4 4cc0 ffff ffff .P.*......L.....
1247 00000270: 04ca 0000 0301 0100 24c0 0c00 2000 f22a ........$... ..*
1248 00000280: 049f ffff 86b1 0000 0201 0000 24c0 0c00 ............$...
1249 00000290: 6015 f22a 049f ffff f0e4 4cc0 ffff ffff `..*......L.....
1250 000002a0: e640 0c00 0101 0000 24c0 0c00 6015 f22a .@......$...`..*
1251 000002b0: 049f ffff f0e4 4cc0 ffff ffff 64b4 0000 ......L.....d...
1252 000002c0: 0301 0100 24c0 0c00 2011 f22a 049f ffff ....$... ..*....
1253 000002d0: 66b9 0000 0201 0000 24c0 0c00 a06e f22a f.......$....n.*
1254 000002e0: 049f ffff f0e4 4cc0 ffff ffff 6ae1 4200 ......L.....j.B.
1255 000002f0: 3e01 1100 24c0 0c00 6a62 6432 2f64 6d2d >...$...jbd2/dm-
1256 00000300: 312d 3800 0000 0000 6a01 0000 7800 0000 1-8.....j...x...
1257 00000310: 0100 0000 0300 0000 269b 0400 0101 0000 ........&.......
1258 00000320: 24c0 0c00 a06e f22a 049f ffff f0e4 4cc0 $....n.*......L.
1259 00000330: ffff ffff ff9d 6fb6 1f87 9c00 1000 0000 ......o.........
1260 00000340: 3b01 0100 24c0 0c00 6b77 6f72 6b65 722f ;...$...kworker/
1261 00000350: 7538 3a35 0000 0000 24c0 0c00 7800 0000 u8:5....$...x...
1262 00000360: 8000 0000 0000 0000 7377 6170 7065 722f ........swapper/
1263 00000370: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1264 00000380: 6ad2 3802 0401 1100 0000 0000 c800 384b j.8...........8K
1265 00000390: 029f ffff 7018 75c0 ffff ffff 00ac edce ....p.u.........
1266 000003a0: 039f ffff 0020 0000 0000 0000 c4de 0000 ..... ..........
1267 000003b0: 0301 1100 0000 0000 c800 384b 029f ffff ..........8K....
1268 000003c0: 8a27 0100 3e01 1100 0000 0000 6b77 6f72 .'..>.......kwor
1269 000003d0: 6b65 722f 303a 3200 0000 0000 48b4 0c00 ker/0:2.....H...
1270 000003e0: 7800 0000 0100 0000 0000 0000 706d 0800 x...........pm..
1271 000003f0: 3b01 0100 0000 0000 7377 6170 7065 722f ;.......swapper/
1272 00000400: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1273 00000410: 0000 0000 0000 0000 6b77 6f72 6b65 722f ........kworker/
1274 00000420: 303a 3200 0000 0000 48b4 0c00 7800 0000 0:2.....H...x...
1275 00000430: 4636 0200 0201 0000 48b4 0c00 c800 384b F6......H.....8K
1276 00000440: 029f ffff 7018 75c0 ffff ffff ca56 0500 ....p.u......V..
1277 00000450: 0401 0100 48b4 0c00 606a ad55 029f ffff ....H...`j.U....
1278 00000460: f0e4 4cc0 ffff ffff 002c 04d0 039f ffff ..L......,......
1279 00000470: 0020 0000 ffff ffff e435 0000 0301 0100 . .......5......
1280 00000480: 48b4 0c00 606a ad55 029f ffff ca67 0000 H...`j.U.....g..
1281 00000490: 3e01 0100 48b4 0c00 6b77 6f72 6b65 722f >...H...kworker/
1282 000004a0: 7538 3a35 0000 0000 24c0 0c00 7800 0000 u8:5....$...x...
1283 000004b0: 0100 0000 0000 0000 e6fc 0200 0101 0000 ................
1284 000004c0: 48b4 0c00 c800 384b 029f ffff 7018 75c0 H.....8K....p.u.
1285 000004d0: ffff ffff 708f 0200 3b01 0100 48b4 0c00 ....p...;...H...
1286 000004e0: 6b77 6f72 6b65 722f 303a 3200 0000 0000 kworker/0:2.....
1287 000004f0: 48b4 0c00 7800 0000 8000 0000 0000 0000 H...x...........
1288 00000500: 6b77 6f72 6b65 722f 7538 3a35 0000 0000 kworker/u8:5....
1289 00000510: 24c0 0c00 7800 0000 0614 0100 0201 0000 $...x...........
1290 00000520: 24c0 0c00 606a ad55 029f ffff f0e4 4cc0 $...`j.U......L.
1291 00000530: ffff ffff ea7e 0c00 3e01 0100 24c0 0c00 .....~..>...$...
1292 00000540: 646d 6372 7970 745f 7772 6974 652f 3200 dmcrypt_write/2.
1293 00000550: 2601 0000 7800 0000 0100 0000 0100 0000 &...x...........
1294 00000560: 4645 0200 0101 0000 24c0 0c00 606a ad55 FE......$...`j.U
1295 00000570: 029f ffff f0e4 4cc0 ffff ffff b043 0900 ......L......C..
1296 00000580: 3b01 0100 24c0 0c00 6b77 6f72 6b65 722f ;...$...kworker/
1297 00000590: 7538 3a35 0000 0000 24c0 0c00 7800 0000 u8:5....$...x...
1298 000005a0: 8000 0000 0000 0000 7377 6170 7065 722f ........swapper/
1299 000005b0: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1300 000005c0: ca7a 3900 0401 1100 0000 0000 48bc d5a1 .z9.........H...
1301 000005d0: 029f ffff 10e2 62bb ffff ffff 00e0 40d0 ......b.......@.
1302 000005e0: 039f ffff 0020 0000 0000 0000 c4bb 0000 ..... ..........
1303 000005f0: 0301 1100 0000 0000 48bc d5a1 029f ffff ........H.......
1304 00000600: 2aea 0000 3e01 1100 0000 0000 6b77 6f72 *...>.......kwor
1305 00000610: 6b65 722f 303a 3148 0000 0000 cfc1 0c00 ker/0:1H........
1306 00000620: 6400 0000 0100 0000 0000 0000 90bb 0600 d...............
1307 00000630: 3b01 0100 0000 0000 7377 6170 7065 722f ;.......swapper/
1308 00000640: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1309 00000650: 0000 0000 0000 0000 6b77 6f72 6b65 722f ........kworker/
1310 00000660: 303a 3148 0000 0000 cfc1 0c00 6400 0000 0:1H........d...
1311 00000670: 8617 0200 0201 0000 cfc1 0c00 48bc d5a1 ............H...
1312 00000680: 029f ffff 10e2 62bb ffff ffff c68f 0400 ......b.........
1313 00000690: 0101 0000 cfc1 0c00 48bc d5a1 029f ffff ........H.......
1314 000006a0: 10e2 62bb ffff ffff b063 0300 3b01 0100 ..b......c..;...
1315 000006b0: cfc1 0c00 6b77 6f72 6b65 722f 303a 3148 ....kworker/0:1H
1316 000006c0: 0000 0000 cfc1 0c00 6400 0000 8000 0000 ........d.......
1317 000006d0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1318 000006e0: 0000 0000 0000 0000 7800 0000 4a10 ad01 ........x...J...
1319 000006f0: 3e01 1100 0000 0000 6a62 6432 2f64 6d2d >.......jbd2/dm-
1320 00000700: 312d 3800 0000 0000 6a01 0000 7800 0000 1-8.....j...x...
1321 00000710: 0100 0000 0300 0000 ea27 b900 3e01 1100 .........'..>...
1322 00000720: 0000 0000 7263 755f 7363 6865 6400 0000 ....rcu_sched...
1323 00000730: 0000 0000 0d00 0000 7800 0000 0100 0000 ........x.......
1324 00000740: 0200 0000 3d00 0000 2c00 0000 0000 0000 ....=...,.......
1325 00000750: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1326 00000760: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1327 00000770: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1328 )";
1329
TEST(CpuReaderTest,ParseAbsoluteTimestamp)1330 TEST(CpuReaderTest, ParseAbsoluteTimestamp) {
1331 BundleProvider bundle_provider(base::kPageSize);
1332 auto page = PageFromXxd(g_abs_timestamp);
1333
1334 // Hand-build a translation table that handles sched_switch for this test
1335 // page. We cannot reuse the test data format file, since the ftrace id for
1336 // sched_switch in this page is different.
1337 std::vector<Field> common_fields;
1338 { // common_pid
1339 common_fields.emplace_back(Field{});
1340 Field* field = &common_fields.back();
1341 field->ftrace_offset = 4;
1342 field->ftrace_size = 4;
1343 field->ftrace_type = kFtraceCommonPid32;
1344 field->proto_field_id = 2;
1345 field->proto_field_type = ProtoSchemaType::kInt32;
1346 SetTranslationStrategy(field->ftrace_type, field->proto_field_type,
1347 &field->strategy);
1348 }
1349 Event sched_switch_event{
1350 "sched_switch",
1351 "sched",
1352 {
1353 {8, 16, FtraceFieldType::kFtraceFixedCString, "prev_comm", 1,
1354 ProtoSchemaType::kString,
1355 TranslationStrategy::kInvalidTranslationStrategy},
1356 {24, 4, FtraceFieldType::kFtracePid32, "prev_pid", 2,
1357 ProtoSchemaType::kInt32,
1358 TranslationStrategy::kInvalidTranslationStrategy},
1359 {28, 4, FtraceFieldType::kFtraceInt32, "prev_prio", 3,
1360 ProtoSchemaType::kInt32,
1361 TranslationStrategy::kInvalidTranslationStrategy},
1362 {32, 8, FtraceFieldType::kFtraceInt64, "prev_state", 4,
1363 ProtoSchemaType::kInt64,
1364 TranslationStrategy::kInvalidTranslationStrategy},
1365 {40, 16, FtraceFieldType::kFtraceFixedCString, "next_comm", 5,
1366 ProtoSchemaType::kString,
1367 TranslationStrategy::kInvalidTranslationStrategy},
1368 {56, 4, FtraceFieldType::kFtracePid32, "next_pid", 6,
1369 ProtoSchemaType::kInt32,
1370 TranslationStrategy::kInvalidTranslationStrategy},
1371 {60, 4, FtraceFieldType::kFtraceInt32, "next_prio", 7,
1372 ProtoSchemaType::kInt32,
1373 TranslationStrategy::kInvalidTranslationStrategy},
1374 },
1375 /*ftrace_event_id=*/315,
1376 /*proto_field_id=*/4,
1377 /*size=*/64};
1378 for (Field& field : sched_switch_event.fields) {
1379 SetTranslationStrategy(field.ftrace_type, field.proto_field_type,
1380 &field.strategy);
1381 }
1382 std::vector<Event> events;
1383 events.emplace_back(std::move(sched_switch_event));
1384
1385 NiceMock<MockFtraceProcfs> mock_ftrace;
1386 PrintkMap printk_formats;
1387 ProtoTranslationTable translation_table(
1388 &mock_ftrace, events, std::move(common_fields),
1389 ProtoTranslationTable::DefaultPageHeaderSpecForTesting(),
1390 InvalidCompactSchedEventFormatForTesting(), printk_formats);
1391 ProtoTranslationTable* table = &translation_table;
1392
1393 FtraceDataSourceConfig ds_config = EmptyConfig();
1394 ds_config.event_filter.AddEnabledEvent(
1395 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
1396
1397 FtraceMetadata metadata{};
1398 CompactSchedBuffer compact_buffer;
1399 const uint8_t* parse_pos = page.get();
1400 base::Optional<CpuReader::PageHeader> page_header =
1401 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
1402
1403 const uint8_t* page_end = page.get() + base::kPageSize;
1404 ASSERT_TRUE(page_header.has_value());
1405 EXPECT_FALSE(page_header->lost_events);
1406 EXPECT_TRUE(parse_pos < page_end);
1407 EXPECT_TRUE(parse_pos + page_header->size < page_end);
1408
1409 size_t evt_bytes = CpuReader::ParsePagePayload(
1410 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
1411 bundle_provider.writer(), &metadata);
1412
1413 ASSERT_LT(0u, evt_bytes);
1414
1415 auto bundle = bundle_provider.ParseProto();
1416 ASSERT_TRUE(bundle);
1417
1418 // There should be 9 sched_switch events within the above page.
1419 // We assert that all of their timestamps are exactly as expected.
1420 //
1421 // The key record that we're testing is an absolute timestamp
1422 // (RINGBUF_TYPE_TIME_STAMP) between the 3rd and 4th sched_switch events.
1423 //
1424 // This timestamp record starts at 0x334 bytes into the page.
1425 // The event header (first 4 bytes): 0xb66f9dff
1426 // -> type (bottom 5 bits): 31 (RINGBUF_TYPE_TIME_STAMP)
1427 // -> bottom 27 bits of ts: 0x5b37cef
1428 // Next 4 bytes have the top bits (28..59) of ts.
1429 // -> post-shift: 0x4e438f8000000
1430 // Adding the two parts of the timestamp, we get: 1376833332542703.
1431 //
1432 // The next event (sched_switch at 0x33c) after this timestamp has a
1433 // delta-timestamp of 0 in its event header, so we expect the 4th
1434 // sched_switch to have a timestamp of exactly 1376833332542703.
1435 EXPECT_EQ(bundle->event().size(), 9u);
1436
1437 std::vector<uint64_t> switch_timestamps;
1438 for (const auto& e : bundle->event())
1439 switch_timestamps.push_back(e.timestamp());
1440
1441 uint64_t expected_timestamps[] = {
1442 1376833327307547ull, 1376833327356434ull, 1376833332265799ull,
1443 1376833332542703ull, 1376833333729055ull, 1376833333757142ull,
1444 1376833333808564ull, 1376833333943445ull, 1376833333964012ull};
1445
1446 ASSERT_THAT(switch_timestamps,
1447 testing::ElementsAreArray(expected_timestamps));
1448 }
1449
TEST(CpuReaderTest,TranslateBlockDeviceIDToUserspace)1450 TEST(CpuReaderTest, TranslateBlockDeviceIDToUserspace) {
1451 const uint32_t kKernelBlockDeviceId = 271581216;
1452 const BlockDeviceID kUserspaceBlockDeviceId = 66336;
1453 const uint64_t k64BitKernelBlockDeviceId = 4442450946;
1454 const BlockDeviceID k64BitUserspaceBlockDeviceId =
1455 static_cast<BlockDeviceID>(17594983681026ULL);
1456
1457 EXPECT_EQ(CpuReader::TranslateBlockDeviceIDToUserspace<uint32_t>(
1458 kKernelBlockDeviceId),
1459 kUserspaceBlockDeviceId);
1460 EXPECT_EQ(CpuReader::TranslateBlockDeviceIDToUserspace<uint64_t>(
1461 k64BitKernelBlockDeviceId),
1462 k64BitUserspaceBlockDeviceId);
1463 }
1464
1465 // clang-format off
1466 // # tracer: nop
1467 // #
1468 // # entries-in-buffer/entries-written: 1041/238740 #P:8
1469 // #
1470 // # _-----=> irqs-off
1471 // # / _----=> need-resched
1472 // # | / _---=> hardirq/softirq
1473 // # || / _--=> preempt-depth
1474 // # ||| / delay
1475 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
1476 // # | | | |||| | |
1477 // android.bg-1668 [000] ...1 174991.234105: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1478 // android.bg-1668 [000] ...1 174991.234108: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
1479 // android.bg-1668 [000] ...1 174991.234118: ext4_da_write_begin: dev 259,32 ino 2883605 pos 20480 len 4096 flags 0
1480 // android.bg-1668 [000] ...1 174991.234126: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1481 // android.bg-1668 [000] ...1 174991.234133: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 5
1482 // android.bg-1668 [000] ...1 174991.234135: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [5/4294967290) 576460752303423487 H0x10
1483 // android.bg-1668 [000] ...2 174991.234140: ext4_da_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 reserved_data_blocks 6 reserved_meta_blocks 0
1484 // android.bg-1668 [000] ...1 174991.234142: ext4_es_insert_extent: dev 259,32 ino 2883605 es [5/1) mapped 576460752303423487 status D
1485 // android.bg-1668 [000] ...1 174991.234153: ext4_da_write_end: dev 259,32 ino 2883605 pos 20480 len 4096 copied 4096
1486 // android.bg-1668 [000] ...1 174991.234158: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1487 // android.bg-1668 [000] ...1 174991.234160: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
1488 // android.bg-1668 [000] ...1 174991.234170: ext4_da_write_begin: dev 259,32 ino 2883605 pos 24576 len 2968 flags 0
1489 // android.bg-1668 [000] ...1 174991.234178: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1490 // android.bg-1668 [000] ...1 174991.234184: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 6
1491 // android.bg-1668 [000] ...1 174991.234187: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [6/4294967289) 576460752303423487 H0x10
1492 // android.bg-1668 [000] ...2 174991.234191: ext4_da_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 reserved_data_blocks 7 reserved_meta_blocks 0
1493 // android.bg-1668 [000] ...1 174991.234193: ext4_es_insert_extent: dev 259,32 ino 2883605 es [6/1) mapped 576460752303423487 status D
1494 // android.bg-1668 [000] ...1 174991.234203: ext4_da_write_end: dev 259,32 ino 2883605 pos 24576 len 2968 copied 2968
1495 // android.bg-1668 [000] ...1 174991.234209: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1496 // android.bg-1668 [000] ...1 174991.234211: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
1497 // android.bg-1668 [000] ...1 174991.234262: ext4_sync_file_enter: dev 259,32 ino 2883605 parent 2883592 datasync 0
1498 // android.bg-1668 [000] ...1 174991.234270: ext4_writepages: dev 259,32 ino 2883605 nr_to_write 9223372036854775807 pages_skipped 0 range_start 0 range_end 9223372036854775807 sync_mode 1 for_kupdate 0 range_cyclic 0 writeback_index 0
1499 // android.bg-1668 [000] ...1 174991.234287: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_writepages+0x6a4/0x119c
1500 // android.bg-1668 [000] ...1 174991.234294: ext4_da_write_pages: dev 259,32 ino 2883605 first_page 0 nr_to_write 9223372036854775807 sync_mode 1
1501 // android.bg-1668 [000] ...1 174991.234319: ext4_da_write_pages_extent: dev 259,32 ino 2883605 lblk 0 len 7 flags 0x200
1502 // android.bg-1668 [000] ...1 174991.234322: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 0
1503 // android.bg-1668 [000] ...1 174991.234324: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [0/7) 576460752303423487 D0x10
1504 // android.bg-1668 [000] ...1 174991.234328: ext4_ext_map_blocks_enter: dev 259,32 ino 2883605 lblk 0 len 7 flags CREATE|DELALLOC|METADATA_NOFAIL
1505 // android.bg-1668 [000] ...1 174991.234341: ext4_request_blocks: dev 259,32 ino 2883605 flags HINT_DATA|DELALLOC_RESV|USE_RESV len 7 lblk 0 goal 11567104 lleft 0 lright 0 pleft 0 pright 0
1506 // android.bg-1668 [000] ...1 174991.234394: ext4_mballoc_prealloc: dev 259,32 inode 2883605 orig 353/0/7@0 result 65/25551/7@0
1507 // android.bg-1668 [000] ...1 174991.234400: ext4_allocate_blocks: dev 259,32 ino 2883605 flags HINT_DATA|DELALLOC_RESV|USE_RESV len 7 block 2155471 lblk 0 goal 11567104 lleft 0 lright 0 pleft 0 pright 0
1508 // android.bg-1668 [000] ...1 174991.234409: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller __ext4_ext_dirty+0x104/0x170
1509 // android.bg-1668 [000] ...1 174991.234420: ext4_get_reserved_cluster_alloc: dev 259,32 ino 2883605 lblk 0 len 7
1510 // android.bg-1668 [000] ...2 174991.234426: ext4_da_update_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 used_blocks 7 reserved_data_blocks 7 reserved_meta_blocks 0 allocated_meta_blocks 0 quota_claim 1
1511 // android.bg-1668 [000] ...1 174991.234434: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
1512 // android.bg-1668 [000] ...1 174991.234441: ext4_es_lookup_extent_enter: dev 259,32 ino 3 lblk 1
1513 // android.bg-1668 [000] ...1 174991.234445: ext4_es_lookup_extent_exit: dev 259,32 ino 3 found 1 [0/2) 9255 W0x10
1514 // android.bg-1668 [000] ...1 174991.234456: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
1515 // android.bg-1668 [000] ...1 174991.234460: ext4_es_lookup_extent_enter: dev 259,32 ino 4 lblk 1
1516 // android.bg-1668 [000] ...1 174991.234463: ext4_es_lookup_extent_exit: dev 259,32 ino 4 found 1 [0/2) 9257 W0x10
1517 // android.bg-1668 [000] ...1 174991.234471: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1518 // android.bg-1668 [000] ...1 174991.234474: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
1519 // android.bg-1668 [000] ...1 174991.234481: ext4_ext_map_blocks_exit: dev 259,32 ino 2883605 flags CREATE|DELALLOC|METADATA_NOFAIL lblk 0 pblk 2155471 len 7 mflags NM ret 7
1520 // android.bg-1668 [000] ...1 174991.234484: ext4_es_insert_extent: dev 259,32 ino 2883605 es [0/7) mapped 2155471 status W
1521 // android.bg-1668 [000] ...1 174991.234547: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_writepages+0xdc0/0x119c
1522 // android.bg-1668 [000] ...1 174991.234604: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_writepages+0x6a4/0x119c
1523 // android.bg-1668 [000] ...1 174991.234609: ext4_da_write_pages: dev 259,32 ino 2883605 first_page 7 nr_to_write 9223372036854775800 sync_mode 1
1524 // android.bg-1668 [000] ...1 174991.234876: ext4_writepages_result: dev 259,32 ino 2883605 ret 0 pages_written 7 pages_skipped 0 sync_mode 1 writeback_index 7
1525 // Profile Saver-5504 [000] ...1 175002.711928: ext4_discard_preallocations: dev 259,32 ino 1311176
1526 // Profile Saver-5504 [000] ...1 175002.714165: ext4_begin_ordered_truncate: dev 259,32 ino 1311176 new_size 0
1527 // Profile Saver-5504 [000] ...1 175002.714172: ext4_journal_start: dev 259,32 blocks, 3 rsv_blocks, 0 caller ext4_setattr+0x5b4/0x788
1528 // Profile Saver-5504 [000] ...1 175002.714218: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_setattr+0x65c/0x788
1529 // Profile Saver-5504 [000] ...1 175002.714277: ext4_invalidatepage: dev 259,32 ino 1311176 page_index 0 offset 0 length 4096
1530 // Profile Saver-5504 [000] ...1 175002.714281: ext4_releasepage: dev 259,32 ino 1311176 page_index 0
1531 // Profile Saver-5504 [000] ...1 175002.714295: ext4_invalidatepage: dev 259,32 ino 1311176 page_index 1 offset 0 length 4096
1532 // Profile Saver-5504 [000] ...1 175002.714296: ext4_releasepage: dev 259,32 ino 1311176 page_index 1
1533 // Profile Saver-5504 [000] ...1 175002.714315: ext4_truncate_enter: dev 259,32 ino 1311176 blocks 24
1534 // Profile Saver-5504 [000] ...1 175002.714318: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_truncate+0x258/0x4b8
1535 // Profile Saver-5504 [000] ...1 175002.714322: ext4_discard_preallocations: dev 259,32 ino 1311176
1536 // Profile Saver-5504 [000] ...1 175002.714324: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_ext_truncate+0x24/0xc8
1537 // Profile Saver-5504 [000] ...1 175002.714328: ext4_es_remove_extent: dev 259,32 ino 1311176 es [0/4294967295)
1538 // Profile Saver-5504 [000] ...1 175002.714335: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_ext_remove_space+0x60/0x1180
1539 // Profile Saver-5504 [000] ...1 175002.714338: ext4_ext_remove_space: dev 259,32 ino 1311176 since 0 end 4294967294 depth 0
1540 // Profile Saver-5504 [000] ...1 175002.714347: ext4_ext_rm_leaf: dev 259,32 ino 1311176 start_lblk 0 last_extent [0(5276994), 2]partial_cluster 0
1541 // Profile Saver-5504 [000] ...1 175002.714351: ext4_remove_blocks: dev 259,32 ino 1311176 extent [0(5276994), 2]from 0 to 1 partial_cluster 0
1542 // Profile Saver-5504 [000] ...1 175002.714354: ext4_free_blocks: dev 259,32 ino 1311176 mode 0100600 block 5276994 count 2 flags 1ST_CLUSTER
1543 // Profile Saver-5504 [000] ...1 175002.714365: ext4_mballoc_free: dev 259,32 inode 1311176 extent 161/1346/2
1544 // Profile Saver-5504 [000] ...1 175002.714382: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
1545 // Profile Saver-5504 [000] ...1 175002.714391: ext4_es_lookup_extent_enter: dev 259,32 ino 3 lblk 4
1546 // Profile Saver-5504 [000] ...1 175002.714394: ext4_es_lookup_extent_exit: dev 259,32 ino 3 found 1 [4/1) 557094 W0x10
1547 // Profile Saver-5504 [000] ...1 175002.714402: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
1548 // Profile Saver-5504 [000] ...1 175002.714404: ext4_es_lookup_extent_enter: dev 259,32 ino 4 lblk 8
1549 // Profile Saver-5504 [000] ...1 175002.714406: ext4_es_lookup_extent_exit: dev 259,32 ino 4 found 1 [8/3) 7376914 W0x10
1550 // Profile Saver-5504 [000] ...1 175002.714413: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1551 // Profile Saver-5504 [000] ...1 175002.714414: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1552 // Profile Saver-5504 [000] ...1 175002.714420: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller __ext4_ext_dirty+0x104/0x170
1553 // Profile Saver-5504 [000] ...1 175002.714423: ext4_ext_remove_space_done: dev 259,32 ino 1311176 since 0 end 4294967294 depth 0 partial 0 remaining_entries 0
1554 // Profile Saver-5504 [000] ...1 175002.714425: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller __ext4_ext_dirty+0x104/0x170
1555 // Profile Saver-5504 [000] ...1 175002.714433: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_truncate+0x3c4/0x4b8
1556 // Profile Saver-5504 [000] ...1 175002.714436: ext4_truncate_exit: dev 259,32 ino 1311176 blocks 8
1557 // Profile Saver-5504 [000] ...1 175002.714437: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1558 // Profile Saver-5504 [000] ...1 175002.714438: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1559 // Profile Saver-5504 [000] ...1 175002.714462: ext4_da_write_begin: dev 259,32 ino 1311176 pos 0 len 4 flags 0
1560 // Profile Saver-5504 [000] ...1 175002.714472: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1561 // Profile Saver-5504 [000] ...1 175002.714477: ext4_es_lookup_extent_enter: dev 259,32 ino 1311176 lblk 0
1562 // Profile Saver-5504 [000] ...1 175002.714477: ext4_es_lookup_extent_exit: dev 259,32 ino 1311176 found 0 [0/0) 0
1563 // Profile Saver-5504 [000] ...1 175002.714480: ext4_ext_map_blocks_enter: dev 259,32 ino 1311176 lblk 0 len 1 flags
1564 // Profile Saver-5504 [000] ...1 175002.714485: ext4_es_find_delayed_extent_range_enter: dev 259,32 ino 1311176 lblk 0
1565 // Profile Saver-5504 [000] ...1 175002.714488: ext4_es_find_delayed_extent_range_exit: dev 259,32 ino 1311176 es [0/0) mapped 0 status
1566 // Profile Saver-5504 [000] ...1 175002.714490: ext4_es_insert_extent: dev 259,32 ino 1311176 es [0/4294967295) mapped 576460752303423487 status H
1567 // Profile Saver-5504 [000] ...1 175002.714495: ext4_ext_map_blocks_exit: dev 259,32 ino 1311176 flags lblk 0 pblk 4294967296 len 1 mflags ret 0
1568 // Profile Saver-5504 [000] ...2 175002.714501: ext4_da_reserve_space: dev 259,32 ino 1311176 mode 0100600 i_blocks 8 reserved_data_blocks 1 reserved_meta_blocks 0
1569 // Profile Saver-5504 [000] ...1 175002.714505: ext4_es_insert_extent: dev 259,32 ino 1311176 es [0/1) mapped 576460752303423487 status D
1570 // Profile Saver-5504 [000] ...1 175002.714513: ext4_da_write_end: dev 259,32 ino 1311176 pos 0 len 4 copied 4
1571 // Profile Saver-5504 [000] ...1 175002.714519: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1572 // Profile Saver-5504 [000] ...1 175002.714520: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1573 // Profile Saver-5504 [000] ...1 175002.714527: ext4_da_write_begin: dev 259,32 ino 1311176 pos 4 len 4 flags 0
1574 // Profile Saver-5504 [000] ...1 175002.714529: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1575 // Profile Saver-5504 [000] ...1 175002.714531: ext4_da_write_end: dev 259,32 ino 1311176 pos 4 len 4 copied 4
1576 // Profile Saver-5504 [000] ...1 175002.714532: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1577 // Profile Saver-5504 [000] ...1 175002.714532: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1578 // Profile Saver-5504 [000] ...1 175002.715313: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1579 // Profile Saver-5504 [000] ...1 175002.715322: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1580 // Profile Saver-5504 [000] ...1 175002.723849: ext4_da_write_begin: dev 259,32 ino 1311176 pos 8 len 5 flags 0
1581 // Profile Saver-5504 [000] ...1 175002.723862: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1582 // Profile Saver-5504 [000] ...1 175002.723873: ext4_da_write_end: dev 259,32 ino 1311176 pos 8 len 5 copied 5
1583 // Profile Saver-5504 [000] ...1 175002.723877: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1584 // Profile Saver-5504 [000] ...1 175002.723879: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1585 // Profile Saver-5504 [000] ...1 175002.726857: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1586 // Profile Saver-5504 [000] ...1 175002.726867: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1587 // Profile Saver-5504 [000] ...1 175002.726881: ext4_da_write_begin: dev 259,32 ino 1311176 pos 13 len 4 flags 0
1588 // Profile Saver-5504 [000] ...1 175002.726883: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1589 // Profile Saver-5504 [000] ...1 175002.726890: ext4_da_write_end: dev 259,32 ino 1311176 pos 13 len 4 copied 4
1590 // Profile Saver-5504 [000] ...1 175002.726892: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1591 // Profile Saver-5504 [000] ...1 175002.726892: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1592 // Profile Saver-5504 [000] ...1 175002.726900: ext4_da_write_begin: dev 259,32 ino 1311176 pos 17 len 4079 flags 0
1593 // Profile Saver-5504 [000] ...1 175002.726901: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1594 // Profile Saver-5504 [000] ...1 175002.726904: ext4_da_write_end: dev 259,32 ino 1311176 pos 17 len 4079 copied 4079
1595 // Profile Saver-5504 [000] ...1 175002.726905: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1596 // Profile Saver-5504 [000] ...1 175002.726906: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1597 // Profile Saver-5504 [000] ...1 175002.726908: ext4_da_write_begin: dev 259,32 ino 1311176 pos 4096 len 2780 flags 0
1598 // Profile Saver-5504 [000] ...1 175002.726916: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
1599 // Profile Saver-5504 [000] ...1 175002.726921: ext4_es_lookup_extent_enter: dev 259,32 ino 1311176 lblk 1
1600 // Profile Saver-5504 [000] ...1 175002.726924: ext4_es_lookup_extent_exit: dev 259,32 ino 1311176 found 1 [1/4294967294) 576460752303423487 H0x10
1601 // Profile Saver-5504 [000] ...2 175002.726931: ext4_da_reserve_space: dev 259,32 ino 1311176 mode 0100600 i_blocks 8 reserved_data_blocks 2 reserved_meta_blocks 0
1602 // Profile Saver-5504 [000] ...1 175002.726933: ext4_es_insert_extent: dev 259,32 ino 1311176 es [1/1) mapped 576460752303423487 status D
1603 // Profile Saver-5504 [000] ...1 175002.726940: ext4_da_write_end: dev 259,32 ino 1311176 pos 4096 len 2780 copied 2780
1604 // Profile Saver-5504 [000] ...1 175002.726941: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1605 // Profile Saver-5504 [000] ...1 175002.726942: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
1606 // d.process.acor-27885 [000] ...1 175018.227675: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
1607 // d.process.acor-27885 [000] ...1 175018.227699: ext4_mark_inode_dirty: dev 259,32 ino 3278189 caller ext4_dirty_inode+0x48/0x68
1608 // d.process.acor-27885 [000] ...1 175018.227839: ext4_sync_file_enter: dev 259,32 ino 3278183 parent 3277001 datasync 1
1609 // d.process.acor-27885 [000] ...1 175018.227847: ext4_writepages: dev 259,32 ino 3278183 nr_to_write 9223372036854775807 pages_skipped 0 range_start 0 range_end 9223372036854775807 sync_mode 1 for_kupdate 0 range_cyclic 0 writeback_index 2
1610 // d.process.acor-27885 [000] ...1 175018.227852: ext4_writepages_result: dev 259,32 ino 3278183 ret 0 pages_written 0 pages_skipped 0 sync_mode 1 writeback_index 2
1611 // clang-format on
1612
1613 static ExamplePage g_full_page_sched_switch{
1614 "synthetic",
1615 R"(
1616 00000000: 31f2 7622 1a00 0000 b40f 0000 0000 0000 1.v"............
1617 00000010: 1e00 0000 0000 0000 1000 0000 2f00 0103 ............/...
1618 00000020: 140d 0000 4a69 7420 7468 7265 6164 2070 ....Jit thread p
1619 00000030: 6f6f 6c00 140d 0000 8100 0000 0008 0000 ool.............
1620 00000040: 0000 0000 4576 656e 7454 6872 6561 6400 ....EventThread.
1621 00000050: 6572 0000 7002 0000 6100 0000 f057 0e00 er..p...a....W..
1622 00000060: 2f00 0103 7002 0000 4576 656e 7454 6872 /...p...EventThr
1623 00000070: 6561 6400 6572 0000 7002 0000 6100 0000 ead.er..p...a...
1624 00000080: 0100 0000 0000 0000 4a69 7420 7468 7265 ........Jit thre
1625 00000090: 6164 2070 6f6f 6c00 140d 0000 8100 0000 ad pool.........
1626 000000a0: 50c2 0910 2f00 0103 140d 0000 4a69 7420 P.../.......Jit
1627 000000b0: 7468 7265 6164 2070 6f6f 6c00 140d 0000 thread pool.....
1628 000000c0: 8100 0000 0100 0000 0000 0000 7377 6170 ............swap
1629 000000d0: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1630 000000e0: 7800 0000 901a c80e 2f00 0103 0000 0000 x......./.......
1631 000000f0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1632 00000100: 0000 0000 7800 0000 0000 0000 0000 0000 ....x...........
1633 00000110: 4469 7370 5379 6e63 0069 6e67 6572 0000 DispSync.inger..
1634 00000120: 6f02 0000 6100 0000 1064 1e00 2f00 0103 o...a....d../...
1635 00000130: 6f02 0000 4469 7370 5379 6e63 0069 6e67 o...DispSync.ing
1636 00000140: 6572 0000 6f02 0000 6100 0000 0100 0000 er..o...a.......
1637 00000150: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1638 00000160: 0000 0000 0000 0000 7800 0000 9074 8600 ........x....t..
1639 00000170: 2f00 0103 0000 0000 7377 6170 7065 722f /.......swapper/
1640 00000180: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1641 00000190: 0000 0000 0000 0000 4576 656e 7454 6872 ........EventThr
1642 000001a0: 6561 6400 6572 0000 7002 0000 6100 0000 ead.er..p...a...
1643 000001b0: d071 0b00 2f00 0103 7002 0000 4576 656e .q../...p...Even
1644 000001c0: 7454 6872 6561 6400 6572 0000 7002 0000 tThread.er..p...
1645 000001d0: 6100 0000 0100 0000 0000 0000 7377 6170 a...........swap
1646 000001e0: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1647 000001f0: 7800 0000 10cd 4504 2f00 0103 0000 0000 x.....E./.......
1648 00000200: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1649 00000210: 0000 0000 7800 0000 0000 0000 0000 0000 ....x...........
1650 00000220: 7375 676f 763a 3000 0000 0000 0000 0000 sugov:0.........
1651 00000230: 3802 0000 3100 0000 30d6 1300 2f00 0103 8...1...0.../...
1652 00000240: 3802 0000 7375 676f 763a 3000 0000 0000 8...sugov:0.....
1653 00000250: 0000 0000 3802 0000 3100 0000 0100 0000 ....8...1.......
1654 00000260: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1655 00000270: 0000 0000 0000 0000 7800 0000 3049 a202 ........x...0I..
1656 00000280: 2f00 0103 0000 0000 7377 6170 7065 722f /.......swapper/
1657 00000290: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1658 000002a0: 0000 0000 0000 0000 4469 7370 5379 6e63 ........DispSync
1659 000002b0: 0069 6e67 6572 0000 6f02 0000 6100 0000 .inger..o...a...
1660 000002c0: d07a 1000 2f00 0103 6f02 0000 4469 7370 .z../...o...Disp
1661 000002d0: 5379 6e63 0069 6e67 6572 0000 6f02 0000 Sync.inger..o...
1662 000002e0: 6100 0000 0100 0000 0000 0000 7377 6170 a...........swap
1663 000002f0: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1664 00000300: 7800 0000 d085 1100 2f00 0103 0000 0000 x......./.......
1665 00000310: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1666 00000320: 0000 0000 7800 0000 0000 0000 0000 0000 ....x...........
1667 00000330: 7375 7266 6163 6566 6c69 6e67 6572 0000 surfaceflinger..
1668 00000340: 4b02 0000 6200 0000 907a f000 2f00 0103 K...b....z../...
1669 00000350: 4b02 0000 7375 7266 6163 6566 6c69 6e67 K...surfacefling
1670 00000360: 6572 0000 4b02 0000 6200 0000 0100 0000 er..K...b.......
1671 00000370: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1672 00000380: 0000 0000 0000 0000 7800 0000 305a 6400 ........x...0Zd.
1673 00000390: 2f00 0103 0000 0000 7377 6170 7065 722f /.......swapper/
1674 000003a0: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1675 000003b0: 0000 0000 0000 0000 6d64 7373 5f66 6230 ........mdss_fb0
1676 000003c0: 0000 0000 0000 0000 5714 0000 5300 0000 ........W...S...
1677 000003d0: 10b1 9e03 2f00 0103 5714 0000 6d64 7373 ..../...W...mdss
1678 000003e0: 5f66 6230 0000 0000 0000 0000 5714 0000 _fb0........W...
1679 000003f0: 5300 0000 0200 0000 0000 0000 6b73 6f66 S...........ksof
1680 00000400: 7469 7271 642f 3000 0000 0000 0300 0000 tirqd/0.........
1681 00000410: 7800 0000 90bb 9900 2f00 0103 0300 0000 x......./.......
1682 00000420: 6b73 6f66 7469 7271 642f 3000 0000 0000 ksoftirqd/0.....
1683 00000430: 0300 0000 7800 0000 0100 0000 0000 0000 ....x...........
1684 00000440: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1685 00000450: 0000 0000 7800 0000 701e 5305 2f00 0103 ....x...p.S./...
1686 00000460: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1687 00000470: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1688 00000480: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1689 00000490: 3600 0000 6401 0000 7800 0000 90a1 2900 6...d...x.....).
1690 000004a0: 2f00 0103 6401 0000 6b77 6f72 6b65 722f /...d...kworker/
1691 000004b0: 7531 363a 3600 0000 6401 0000 7800 0000 u16:6...d...x...
1692 000004c0: 0200 0000 0000 0000 7377 6170 7065 722f ........swapper/
1693 000004d0: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1694 000004e0: b0e5 4f04 2f00 0103 0000 0000 7377 6170 ..O./.......swap
1695 000004f0: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1696 00000500: 7800 0000 0000 0000 0000 0000 4269 6e64 x...........Bind
1697 00000510: 6572 3a32 3136 385f 3135 0000 e614 0000 er:2168_15......
1698 00000520: 7800 0000 b0bd 7c00 2f00 0103 e614 0000 x.....|./.......
1699 00000530: 4269 6e64 6572 3a32 3136 385f 3135 0000 Binder:2168_15..
1700 00000540: e614 0000 7800 0000 0100 0000 0000 0000 ....x...........
1701 00000550: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1702 00000560: 0000 0000 7800 0000 d0bd 7e01 2f00 0103 ....x.....~./...
1703 00000570: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1704 00000580: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1705 00000590: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1706 000005a0: 3900 0000 e204 0000 7800 0000 7016 0800 9.......x...p...
1707 000005b0: 2f00 0103 e204 0000 6b77 6f72 6b65 722f /.......kworker/
1708 000005c0: 7531 363a 3900 0000 e204 0000 7800 0000 u16:9.......x...
1709 000005d0: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1710 000005e0: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1711 000005f0: 1004 5200 2f00 0103 0000 0000 7377 6170 ..R./.......swap
1712 00000600: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1713 00000610: 7800 0000 0000 0000 0000 0000 6b77 6f72 x...........kwor
1714 00000620: 6b65 722f 7531 363a 3900 0000 e204 0000 ker/u16:9.......
1715 00000630: 7800 0000 d0db 0700 2f00 0103 e204 0000 x......./.......
1716 00000640: 6b77 6f72 6b65 722f 7531 363a 3900 0000 kworker/u16:9...
1717 00000650: e204 0000 7800 0000 0100 0000 0000 0000 ....x...........
1718 00000660: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1719 00000670: 0000 0000 7800 0000 b0a2 8c00 2f00 0103 ....x......./...
1720 00000680: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1721 00000690: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1722 000006a0: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1723 000006b0: 3900 0000 e204 0000 7800 0000 d02b 0400 9.......x....+..
1724 000006c0: 2f00 0103 e204 0000 6b77 6f72 6b65 722f /.......kworker/
1725 000006d0: 7531 363a 3900 0000 e204 0000 7800 0000 u16:9.......x...
1726 000006e0: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1727 000006f0: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1728 00000700: d064 ef05 2f00 0103 0000 0000 7377 6170 .d../.......swap
1729 00000710: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1730 00000720: 7800 0000 0000 0000 0000 0000 4469 7370 x...........Disp
1731 00000730: 5379 6e63 0069 6e67 6572 0000 6f02 0000 Sync.inger..o...
1732 00000740: 6100 0000 f07d 1b00 2f00 0103 6f02 0000 a....}../...o...
1733 00000750: 4469 7370 5379 6e63 0069 6e67 6572 0000 DispSync.inger..
1734 00000760: 6f02 0000 6100 0000 0100 0000 0000 0000 o...a...........
1735 00000770: 6b73 6f66 7469 7271 642f 3000 0000 0000 ksoftirqd/0.....
1736 00000780: 0300 0000 7800 0000 304c 2000 2f00 0103 ....x...0L ./...
1737 00000790: 0300 0000 6b73 6f66 7469 7271 642f 3000 ....ksoftirqd/0.
1738 000007a0: 0000 0000 0300 0000 7800 0000 0100 0000 ........x.......
1739 000007b0: 0000 0000 6465 7832 6f61 7400 3935 5f33 ....dex2oat.95_3
1740 000007c0: 0000 0000 341f 0000 8200 0000 700b 0700 ....4.......p...
1741 000007d0: 2f00 0103 341f 0000 6465 7832 6f61 7400 /...4...dex2oat.
1742 000007e0: 3935 5f33 0000 0000 341f 0000 8200 0000 95_3....4.......
1743 000007f0: 0000 0000 0000 0000 7375 676f 763a 3000 ........sugov:0.
1744 00000800: 0000 0000 0000 0000 3802 0000 3100 0000 ........8...1...
1745 00000810: 50b0 0600 2f00 0103 3802 0000 7375 676f P.../...8...sugo
1746 00000820: 763a 3000 0000 0000 0000 0000 3802 0000 v:0.........8...
1747 00000830: 3100 0000 0008 0000 0000 0000 6d69 6772 1...........migr
1748 00000840: 6174 696f 6e2f 3000 0000 0000 0d00 0000 ation/0.........
1749 00000850: 0000 0000 d09c 0600 2f00 0103 0d00 0000 ......../.......
1750 00000860: 6d69 6772 6174 696f 6e2f 3000 0000 0000 migration/0.....
1751 00000870: 0d00 0000 0000 0000 0100 0000 0000 0000 ................
1752 00000880: 7375 676f 763a 3000 0000 0000 0000 0000 sugov:0.........
1753 00000890: 3802 0000 3100 0000 7061 1900 2f00 0103 8...1...pa../...
1754 000008a0: 3802 0000 7375 676f 763a 3000 0000 0000 8...sugov:0.....
1755 000008b0: 0000 0000 3802 0000 3100 0000 0100 0000 ....8...1.......
1756 000008c0: 0000 0000 6465 7832 6f61 7400 3935 5f33 ....dex2oat.95_3
1757 000008d0: 0000 0000 341f 0000 8200 0000 f03c 5600 ....4........<V.
1758 000008e0: 2f00 0103 341f 0000 6465 7832 6f61 7400 /...4...dex2oat.
1759 000008f0: 3935 5f33 0000 0000 341f 0000 8200 0000 95_3....4.......
1760 00000900: 0200 0000 0000 0000 7377 6170 7065 722f ........swapper/
1761 00000910: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1762 00000920: 5013 c400 2f00 0103 0000 0000 7377 6170 P.../.......swap
1763 00000930: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1764 00000940: 7800 0000 0000 0000 0000 0000 616e 6472 x...........andr
1765 00000950: 6f69 642e 6861 7264 7761 7200 d20a 0000 oid.hardwar.....
1766 00000960: 7800 0000 30c9 1300 2f00 0103 d20a 0000 x...0.../.......
1767 00000970: 616e 6472 6f69 642e 6861 7264 7761 7200 android.hardwar.
1768 00000980: d20a 0000 7800 0000 0100 0000 0000 0000 ....x...........
1769 00000990: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1770 000009a0: 0000 0000 7800 0000 7097 c000 2f00 0103 ....x...p.../...
1771 000009b0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1772 000009c0: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1773 000009d0: 0000 0000 616e 6472 6f69 642e 6861 7264 ....android.hard
1774 000009e0: 7761 7200 d20a 0000 7800 0000 305c 0c00 war.....x...0\..
1775 000009f0: 2f00 0103 d20a 0000 616e 6472 6f69 642e /.......android.
1776 00000a00: 6861 7264 7761 7200 d20a 0000 7800 0000 hardwar.....x...
1777 00000a10: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1778 00000a20: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1779 00000a30: d0aa 1401 2f00 0103 0000 0000 7377 6170 ..../.......swap
1780 00000a40: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1781 00000a50: 7800 0000 0000 0000 0000 0000 616e 6472 x...........andr
1782 00000a60: 6f69 642e 6861 7264 7761 7200 d20a 0000 oid.hardwar.....
1783 00000a70: 7800 0000 903b 0c00 2f00 0103 d20a 0000 x....;../.......
1784 00000a80: 616e 6472 6f69 642e 6861 7264 7761 7200 android.hardwar.
1785 00000a90: d20a 0000 7800 0000 0100 0000 0000 0000 ....x...........
1786 00000aa0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1787 00000ab0: 0000 0000 7800 0000 f024 5401 2f00 0103 ....x....$T./...
1788 00000ac0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1789 00000ad0: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1790 00000ae0: 0000 0000 616e 6472 6f69 642e 6861 7264 ....android.hard
1791 00000af0: 7761 7200 d20a 0000 7800 0000 f0f3 0b00 war.....x.......
1792 00000b00: 2f00 0103 d20a 0000 616e 6472 6f69 642e /.......android.
1793 00000b10: 6861 7264 7761 7200 d20a 0000 7800 0000 hardwar.....x...
1794 00000b20: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1795 00000b30: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1796 00000b40: d0b5 bf02 2f00 0103 0000 0000 7377 6170 ..../.......swap
1797 00000b50: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1798 00000b60: 7800 0000 0000 0000 0000 0000 4469 7370 x...........Disp
1799 00000b70: 5379 6e63 0069 6e67 6572 0000 6f02 0000 Sync.inger..o...
1800 00000b80: 6100 0000 90cd 1400 2f00 0103 6f02 0000 a......./...o...
1801 00000b90: 4469 7370 5379 6e63 0069 6e67 6572 0000 DispSync.inger..
1802 00000ba0: 6f02 0000 6100 0000 0100 0000 0000 0000 o...a...........
1803 00000bb0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1804 00000bc0: 0000 0000 7800 0000 50a6 1100 2f00 0103 ....x...P.../...
1805 00000bd0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1806 00000be0: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1807 00000bf0: 0000 0000 7375 7266 6163 6566 6c69 6e67 ....surfacefling
1808 00000c00: 6572 0000 4b02 0000 6200 0000 b04c 4200 er..K...b....LB.
1809 00000c10: 2f00 0103 4b02 0000 7375 7266 6163 6566 /...K...surfacef
1810 00000c20: 6c69 6e67 6572 0000 4b02 0000 6200 0000 linger..K...b...
1811 00000c30: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1812 00000c40: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1813 00000c50: b025 060a 2f00 0103 0000 0000 7377 6170 .%../.......swap
1814 00000c60: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1815 00000c70: 7800 0000 0000 0000 0000 0000 6b77 6f72 x...........kwor
1816 00000c80: 6b65 722f 7531 363a 3600 0000 6401 0000 ker/u16:6...d...
1817 00000c90: 7800 0000 d0b6 0600 2f00 0103 6401 0000 x......./...d...
1818 00000ca0: 6b77 6f72 6b65 722f 7531 363a 3600 0000 kworker/u16:6...
1819 00000cb0: 6401 0000 7800 0000 0100 0000 0000 0000 d...x...........
1820 00000cc0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1821 00000cd0: 0000 0000 7800 0000 f0a0 5800 2f00 0103 ....x.....X./...
1822 00000ce0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1823 00000cf0: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1824 00000d00: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1825 00000d10: 3600 0000 6401 0000 7800 0000 f07a 1300 6...d...x....z..
1826 00000d20: 2f00 0103 6401 0000 6b77 6f72 6b65 722f /...d...kworker/
1827 00000d30: 7531 363a 3600 0000 6401 0000 7800 0000 u16:6...d...x...
1828 00000d40: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1829 00000d50: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1830 00000d60: b080 b101 2f00 0103 0000 0000 7377 6170 ..../.......swap
1831 00000d70: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1832 00000d80: 7800 0000 0000 0000 0000 0000 6b77 6f72 x...........kwor
1833 00000d90: 6b65 722f 7531 363a 3600 0000 6401 0000 ker/u16:6...d...
1834 00000da0: 7800 0000 103c 1200 2f00 0103 6401 0000 x....<../...d...
1835 00000db0: 6b77 6f72 6b65 722f 7531 363a 3600 0000 kworker/u16:6...
1836 00000dc0: 6401 0000 7800 0000 0100 0000 0000 0000 d...x...........
1837 00000dd0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1838 00000de0: 0000 0000 7800 0000 50ea 3800 2f00 0103 ....x...P.8./...
1839 00000df0: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1840 00000e00: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1841 00000e10: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1842 00000e20: 3600 0000 6401 0000 7800 0000 5032 0400 6...d...x...P2..
1843 00000e30: 2f00 0103 6401 0000 6b77 6f72 6b65 722f /...d...kworker/
1844 00000e40: 7531 363a 3600 0000 6401 0000 7800 0000 u16:6...d...x...
1845 00000e50: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1846 00000e60: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1847 00000e70: 70f5 9000 2f00 0103 0000 0000 7377 6170 p.../.......swap
1848 00000e80: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1849 00000e90: 7800 0000 0000 0000 0000 0000 6b77 6f72 x...........kwor
1850 00000ea0: 6b65 722f 7531 363a 3600 0000 6401 0000 ker/u16:6...d...
1851 00000eb0: 7800 0000 10d7 0300 2f00 0103 6401 0000 x......./...d...
1852 00000ec0: 6b77 6f72 6b65 722f 7531 363a 3600 0000 kworker/u16:6...
1853 00000ed0: 6401 0000 7800 0000 0100 0000 0000 0000 d...x...........
1854 00000ee0: 7377 6170 7065 722f 3000 0000 0000 0000 swapper/0.......
1855 00000ef0: 0000 0000 7800 0000 907c 0900 2f00 0103 ....x....|../...
1856 00000f00: 0000 0000 7377 6170 7065 722f 3000 0000 ....swapper/0...
1857 00000f10: 0000 0000 0000 0000 7800 0000 0000 0000 ........x.......
1858 00000f20: 0000 0000 6b77 6f72 6b65 722f 7531 363a ....kworker/u16:
1859 00000f30: 3600 0000 6401 0000 7800 0000 7082 0300 6...d...x...p...
1860 00000f40: 2f00 0103 6401 0000 6b77 6f72 6b65 722f /...d...kworker/
1861 00000f50: 7531 363a 3600 0000 6401 0000 7800 0000 u16:6...d...x...
1862 00000f60: 0100 0000 0000 0000 7377 6170 7065 722f ........swapper/
1863 00000f70: 3000 0000 0000 0000 0000 0000 7800 0000 0...........x...
1864 00000f80: f0ec 2100 2f00 0103 0000 0000 7377 6170 ..!./.......swap
1865 00000f90: 7065 722f 3000 0000 0000 0000 0000 0000 per/0...........
1866 00000fa0: 7800 0000 0000 0000 0000 0000 6b77 6f72 x...........kwor
1867 00000fb0: 6b65 722f 7531 363a 3600 0000 6401 0000 ker/u16:6...d...
1868 00000fc0: 7800 0000 0000 0000 0000 0000 0000 0000 x...............
1869 00000fd0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1870 00000fe0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1871 00000ff0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1872 )",
1873 };
1874
TEST(CpuReaderTest,ParseFullPageSchedSwitch)1875 TEST(CpuReaderTest, ParseFullPageSchedSwitch) {
1876 const ExamplePage* test_case = &g_full_page_sched_switch;
1877
1878 BundleProvider bundle_provider(base::kPageSize);
1879 ProtoTranslationTable* table = GetTable(test_case->name);
1880 auto page = PageFromXxd(test_case->data);
1881
1882 FtraceDataSourceConfig ds_config = EmptyConfig();
1883 ds_config.event_filter.AddEnabledEvent(
1884 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
1885
1886 FtraceMetadata metadata{};
1887 CompactSchedBuffer compact_buffer;
1888 const uint8_t* parse_pos = page.get();
1889 base::Optional<CpuReader::PageHeader> page_header =
1890 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
1891
1892 const uint8_t* page_end = page.get() + base::kPageSize;
1893 ASSERT_TRUE(page_header.has_value());
1894 EXPECT_FALSE(page_header->lost_events);
1895 EXPECT_TRUE(parse_pos < page_end);
1896 EXPECT_TRUE(parse_pos + page_header->size < page_end);
1897
1898 size_t evt_bytes = CpuReader::ParsePagePayload(
1899 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
1900 bundle_provider.writer(), &metadata);
1901
1902 EXPECT_LT(0u, evt_bytes);
1903
1904 auto bundle = bundle_provider.ParseProto();
1905 ASSERT_TRUE(bundle);
1906 EXPECT_EQ(bundle->event().size(), 59u);
1907 }
1908
1909 // clang-format off
1910 // # tracer: nop
1911 // #
1912 // # entries-in-buffer/entries-written: 18/18 #P:8
1913 // #
1914 // # _-----=> irqs-off
1915 // # / _----=> need-resched
1916 // # | / _---=> hardirq/softirq
1917 // # || / _--=> preempt-depth
1918 // # ||| / delay
1919 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
1920 // # | | | |||| | |
1921 // <...>-9290 [000] .... 1352.654573: suspend_resume: sync_filesystems[0] end
1922 // <...>-9290 [000] .... 1352.665366: suspend_resume: freeze_processes[0] begin
1923 // <...>-9290 [000] .... 1352.699711: suspend_resume: freeze_processes[0] end
1924 // <...>-9290 [000] .... 1352.699718: suspend_resume: suspend_enter[1] end
1925 // <...>-9290 [000] .... 1352.699723: suspend_resume: dpm_prepare[2] begin
1926 // <...>-9290 [000] .... 1352.703470: suspend_resume: dpm_prepare[2] end
1927 // <...>-9290 [000] .... 1352.703477: suspend_resume: dpm_suspend[2] begin
1928 // <...>-9290 [000] .... 1352.720107: suspend_resume: dpm_resume[16] end
1929 // <...>-9290 [000] .... 1352.720113: suspend_resume: dpm_complete[16] begin
1930 // <...>-9290 [000] .n.. 1352.724540: suspend_resume: dpm_complete[16] end
1931 // <...>-9290 [000] .... 1352.724567: suspend_resume: resume_console[1] begin
1932 // <...>-9290 [000] .... 1352.724570: suspend_resume: resume_console[1] end
1933 // <...>-9290 [000] .... 1352.724574: suspend_resume: thaw_processes[0] begin
1934 static ExamplePage g_suspend_resume {
1935 "synthetic",
1936 R"(00000000: edba 155a 3201 0000 7401 0000 0000 0000 ...Z2...t.......
1937 00000010: 7e58 22cd 1201 0000 0600 0000 ac00 0000 ~X".............
1938 00000020: 4a24 0000 5a7a f504 85ff ffff 0000 0000 J$..Zz..........
1939 00000030: 0017 0000 c621 9614 ac00 0000 4a24 0000 .....!......J$..
1940 00000040: 1c7a f504 85ff ffff 0000 0000 0100 0000 .z..............
1941 00000050: e6f1 8141 ac00 0000 4a24 0000 1c7a f504 ...A....J$...z..
1942 00000060: 85ff ffff 0000 0000 0000 0000 8682 0300 ................
1943 00000070: ac00 0000 4a24 0000 4c7a f504 85ff ffff ....J$..Lz......
1944 00000080: 0100 0000 0063 755f 0657 0200 ac00 0000 .....cu_.W......
1945 00000090: 4a24 0000 8ad5 0105 85ff ffff 0200 0000 J$..............
1946 000000a0: 0100 0000 06b5 2507 ac00 0000 4a24 0000 ......%.....J$..
1947 000000b0: 8ad5 0105 85ff ffff 0200 0000 0000 0000 ................
1948 000000c0: 460d 0300 ac00 0000 4a24 0000 51d5 0105 F.......J$..Q...
1949 000000d0: 85ff ffff 0200 0000 0117 0000 c63e b81f .............>..
1950 000000e0: ac00 0000 4a24 0000 7fd5 0105 85ff ffff ....J$..........
1951 000000f0: 1000 0000 0010 0b00 a6f9 0200 ac00 0000 ................
1952 00000100: 4a24 0000 96d5 0105 85ff ffff 1000 0000 J$..............
1953 00000110: 01c0 1f00 a6dd 7108 ac00 0400 4a24 0000 ......q.....J$..
1954 00000120: 96d5 0105 85ff ffff 1000 0000 0000 0000 ................
1955 00000130: c6f1 0c00 ac00 0000 4a24 0000 3d7a f504 ........J$..=z..
1956 00000140: 85ff ffff 0100 0000 01ea 24d5 a66c 0100 ..........$..l..
1957 00000150: ac00 0000 4a24 0000 3d7a f504 85ff ffff ....J$..=z......
1958 00000160: 0100 0000 0000 0001 6636 0200 ac00 0000 ........f6......
1959 00000170: 4a24 0000 d178 f504 85ff ffff 0000 0000 J$...x..........
1960 00000180: 0100 0000 0000 0000 0000 0000 0000 0000 ................
1961 00000190: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1962 )"};
1963
TEST(CpuReaderTest,ParseSuspendResume)1964 TEST(CpuReaderTest, ParseSuspendResume) {
1965 const ExamplePage* test_case = &g_suspend_resume;
1966
1967 BundleProvider bundle_provider(base::kPageSize);
1968 ProtoTranslationTable* table = GetTable(test_case->name);
1969 auto page = PageFromXxd(test_case->data);
1970
1971 FtraceDataSourceConfig ds_config = EmptyConfig();
1972 ds_config.event_filter.AddEnabledEvent(
1973 table->EventToFtraceId(GroupAndName("power", "suspend_resume")));
1974
1975 FtraceMetadata metadata{};
1976 CompactSchedBuffer compact_buffer;
1977 const uint8_t* parse_pos = page.get();
1978 base::Optional<CpuReader::PageHeader> page_header =
1979 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
1980 ASSERT_TRUE(page_header.has_value());
1981
1982 CpuReader::ParsePagePayload(
1983 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
1984 bundle_provider.writer(), &metadata);
1985 auto bundle = bundle_provider.ParseProto();
1986 ASSERT_TRUE(bundle);
1987 ASSERT_EQ(bundle->event().size(), 13u);
1988 EXPECT_EQ(bundle->event()[0].suspend_resume().action(), "sync_filesystems");
1989 EXPECT_EQ(bundle->event()[1].suspend_resume().action(), "freeze_processes");
1990 EXPECT_EQ(bundle->event()[2].suspend_resume().action(), "freeze_processes");
1991 EXPECT_EQ(bundle->event()[3].suspend_resume().action(), "suspend_enter");
1992 // dpm_prepare deliberately missing from:
1993 // src/traced/probes/ftrace/test/data/synthetic/printk_formats to ensure we
1994 // handle that case correctly.
1995 EXPECT_EQ(bundle->event()[4].suspend_resume().action(), "");
1996 }
1997
1998 // clang-format off
1999 // # tracer: nop
2000 // #
2001 // # entries-in-buffer/entries-written: 1041/238740 #P:8
2002 // #
2003 // # _-----=> irqs-off
2004 // # / _----=> need-resched
2005 // # | / _---=> hardirq/softirq
2006 // # || / _--=> preempt-depth
2007 // # ||| / delay
2008 // # TASK-PID CPU# |||| TIMESTAMP FUNCTION
2009 // # | | | |||| | |
2010 // android.bg-1668 [000] ...1 174991.234105: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2011 // android.bg-1668 [000] ...1 174991.234108: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
2012 // android.bg-1668 [000] ...1 174991.234118: ext4_da_write_begin: dev 259,32 ino 2883605 pos 20480 len 4096 flags 0
2013 // android.bg-1668 [000] ...1 174991.234126: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2014 // android.bg-1668 [000] ...1 174991.234133: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 5
2015 // android.bg-1668 [000] ...1 174991.234135: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [5/4294967290) 576460752303423487 H0x10
2016 // android.bg-1668 [000] ...2 174991.234140: ext4_da_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 reserved_data_blocks 6 reserved_meta_blocks 0
2017 // android.bg-1668 [000] ...1 174991.234142: ext4_es_insert_extent: dev 259,32 ino 2883605 es [5/1) mapped 576460752303423487 status D
2018 // android.bg-1668 [000] ...1 174991.234153: ext4_da_write_end: dev 259,32 ino 2883605 pos 20480 len 4096 copied 4096
2019 // android.bg-1668 [000] ...1 174991.234158: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2020 // android.bg-1668 [000] ...1 174991.234160: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
2021 // android.bg-1668 [000] ...1 174991.234170: ext4_da_write_begin: dev 259,32 ino 2883605 pos 24576 len 2968 flags 0
2022 // android.bg-1668 [000] ...1 174991.234178: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2023 // android.bg-1668 [000] ...1 174991.234184: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 6
2024 // android.bg-1668 [000] ...1 174991.234187: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [6/4294967289) 576460752303423487 H0x10
2025 // android.bg-1668 [000] ...2 174991.234191: ext4_da_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 reserved_data_blocks 7 reserved_meta_blocks 0
2026 // android.bg-1668 [000] ...1 174991.234193: ext4_es_insert_extent: dev 259,32 ino 2883605 es [6/1) mapped 576460752303423487 status D
2027 // android.bg-1668 [000] ...1 174991.234203: ext4_da_write_end: dev 259,32 ino 2883605 pos 24576 len 2968 copied 2968
2028 // android.bg-1668 [000] ...1 174991.234209: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2029 // android.bg-1668 [000] ...1 174991.234211: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
2030 // android.bg-1668 [000] ...1 174991.234262: ext4_sync_file_enter: dev 259,32 ino 2883605 parent 2883592 datasync 0
2031 // android.bg-1668 [000] ...1 174991.234270: ext4_writepages: dev 259,32 ino 2883605 nr_to_write 9223372036854775807 pages_skipped 0 range_start 0 range_end 9223372036854775807 sync_mode 1 for_kupdate 0 range_cyclic 0 writeback_index 0
2032 // android.bg-1668 [000] ...1 174991.234287: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_writepages+0x6a4/0x119c
2033 // android.bg-1668 [000] ...1 174991.234294: ext4_da_write_pages: dev 259,32 ino 2883605 first_page 0 nr_to_write 9223372036854775807 sync_mode 1
2034 // android.bg-1668 [000] ...1 174991.234319: ext4_da_write_pages_extent: dev 259,32 ino 2883605 lblk 0 len 7 flags 0x200
2035 // android.bg-1668 [000] ...1 174991.234322: ext4_es_lookup_extent_enter: dev 259,32 ino 2883605 lblk 0
2036 // android.bg-1668 [000] ...1 174991.234324: ext4_es_lookup_extent_exit: dev 259,32 ino 2883605 found 1 [0/7) 576460752303423487 D0x10
2037 // android.bg-1668 [000] ...1 174991.234328: ext4_ext_map_blocks_enter: dev 259,32 ino 2883605 lblk 0 len 7 flags CREATE|DELALLOC|METADATA_NOFAIL
2038 // android.bg-1668 [000] ...1 174991.234341: ext4_request_blocks: dev 259,32 ino 2883605 flags HINT_DATA|DELALLOC_RESV|USE_RESV len 7 lblk 0 goal 11567104 lleft 0 lright 0 pleft 0 pright 0
2039 // android.bg-1668 [000] ...1 174991.234394: ext4_mballoc_prealloc: dev 259,32 inode 2883605 orig 353/0/7@0 result 65/25551/7@0
2040 // android.bg-1668 [000] ...1 174991.234400: ext4_allocate_blocks: dev 259,32 ino 2883605 flags HINT_DATA|DELALLOC_RESV|USE_RESV len 7 block 2155471 lblk 0 goal 11567104 lleft 0 lright 0 pleft 0 pright 0
2041 // android.bg-1668 [000] ...1 174991.234409: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller __ext4_ext_dirty+0x104/0x170
2042 // android.bg-1668 [000] ...1 174991.234420: ext4_get_reserved_cluster_alloc: dev 259,32 ino 2883605 lblk 0 len 7
2043 // android.bg-1668 [000] ...2 174991.234426: ext4_da_update_reserve_space: dev 259,32 ino 2883605 mode 0100600 i_blocks 8 used_blocks 7 reserved_data_blocks 7 reserved_meta_blocks 0 allocated_meta_blocks 0 quota_claim 1
2044 // android.bg-1668 [000] ...1 174991.234434: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
2045 // android.bg-1668 [000] ...1 174991.234441: ext4_es_lookup_extent_enter: dev 259,32 ino 3 lblk 1
2046 // android.bg-1668 [000] ...1 174991.234445: ext4_es_lookup_extent_exit: dev 259,32 ino 3 found 1 [0/2) 9255 W0x10
2047 // android.bg-1668 [000] ...1 174991.234456: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
2048 // android.bg-1668 [000] ...1 174991.234460: ext4_es_lookup_extent_enter: dev 259,32 ino 4 lblk 1
2049 // android.bg-1668 [000] ...1 174991.234463: ext4_es_lookup_extent_exit: dev 259,32 ino 4 found 1 [0/2) 9257 W0x10
2050 // android.bg-1668 [000] ...1 174991.234471: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2051 // android.bg-1668 [000] ...1 174991.234474: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_dirty_inode+0x48/0x68
2052 // android.bg-1668 [000] ...1 174991.234481: ext4_ext_map_blocks_exit: dev 259,32 ino 2883605 flags CREATE|DELALLOC|METADATA_NOFAIL lblk 0 pblk 2155471 len 7 mflags NM ret 7
2053 // android.bg-1668 [000] ...1 174991.234484: ext4_es_insert_extent: dev 259,32 ino 2883605 es [0/7) mapped 2155471 status W
2054 // android.bg-1668 [000] ...1 174991.234547: ext4_mark_inode_dirty: dev 259,32 ino 2883605 caller ext4_writepages+0xdc0/0x119c
2055 // android.bg-1668 [000] ...1 174991.234604: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_writepages+0x6a4/0x119c
2056 // android.bg-1668 [000] ...1 174991.234609: ext4_da_write_pages: dev 259,32 ino 2883605 first_page 7 nr_to_write 9223372036854775800 sync_mode 1
2057 // android.bg-1668 [000] ...1 174991.234876: ext4_writepages_result: dev 259,32 ino 2883605 ret 0 pages_written 7 pages_skipped 0 sync_mode 1 writeback_index 7
2058 // Profile Saver-5504 [000] ...1 175002.711928: ext4_discard_preallocations: dev 259,32 ino 1311176
2059 // Profile Saver-5504 [000] ...1 175002.714165: ext4_begin_ordered_truncate: dev 259,32 ino 1311176 new_size 0
2060 // Profile Saver-5504 [000] ...1 175002.714172: ext4_journal_start: dev 259,32 blocks, 3 rsv_blocks, 0 caller ext4_setattr+0x5b4/0x788
2061 // Profile Saver-5504 [000] ...1 175002.714218: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_setattr+0x65c/0x788
2062 // Profile Saver-5504 [000] ...1 175002.714277: ext4_invalidatepage: dev 259,32 ino 1311176 page_index 0 offset 0 length 4096
2063 // Profile Saver-5504 [000] ...1 175002.714281: ext4_releasepage: dev 259,32 ino 1311176 page_index 0
2064 // Profile Saver-5504 [000] ...1 175002.714295: ext4_invalidatepage: dev 259,32 ino 1311176 page_index 1 offset 0 length 4096
2065 // Profile Saver-5504 [000] ...1 175002.714296: ext4_releasepage: dev 259,32 ino 1311176 page_index 1
2066 // Profile Saver-5504 [000] ...1 175002.714315: ext4_truncate_enter: dev 259,32 ino 1311176 blocks 24
2067 // Profile Saver-5504 [000] ...1 175002.714318: ext4_journal_start: dev 259,32 blocks, 10 rsv_blocks, 0 caller ext4_truncate+0x258/0x4b8
2068 // Profile Saver-5504 [000] ...1 175002.714322: ext4_discard_preallocations: dev 259,32 ino 1311176
2069 // Profile Saver-5504 [000] ...1 175002.714324: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_ext_truncate+0x24/0xc8
2070 // Profile Saver-5504 [000] ...1 175002.714328: ext4_es_remove_extent: dev 259,32 ino 1311176 es [0/4294967295)
2071 // Profile Saver-5504 [000] ...1 175002.714335: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_ext_remove_space+0x60/0x1180
2072 // Profile Saver-5504 [000] ...1 175002.714338: ext4_ext_remove_space: dev 259,32 ino 1311176 since 0 end 4294967294 depth 0
2073 // Profile Saver-5504 [000] ...1 175002.714347: ext4_ext_rm_leaf: dev 259,32 ino 1311176 start_lblk 0 last_extent [0(5276994), 2]partial_cluster 0
2074 // Profile Saver-5504 [000] ...1 175002.714351: ext4_remove_blocks: dev 259,32 ino 1311176 extent [0(5276994), 2]from 0 to 1 partial_cluster 0
2075 // Profile Saver-5504 [000] ...1 175002.714354: ext4_free_blocks: dev 259,32 ino 1311176 mode 0100600 block 5276994 count 2 flags 1ST_CLUSTER
2076 // Profile Saver-5504 [000] ...1 175002.714365: ext4_mballoc_free: dev 259,32 inode 1311176 extent 161/1346/2
2077 // Profile Saver-5504 [000] ...1 175002.714382: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
2078 // Profile Saver-5504 [000] ...1 175002.714391: ext4_es_lookup_extent_enter: dev 259,32 ino 3 lblk 4
2079 // Profile Saver-5504 [000] ...1 175002.714394: ext4_es_lookup_extent_exit: dev 259,32 ino 3 found 1 [4/1) 557094 W0x10
2080 // Profile Saver-5504 [000] ...1 175002.714402: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_mark_dquot_dirty+0x80/0xd4
2081 // Profile Saver-5504 [000] ...1 175002.714404: ext4_es_lookup_extent_enter: dev 259,32 ino 4 lblk 8
2082 // Profile Saver-5504 [000] ...1 175002.714406: ext4_es_lookup_extent_exit: dev 259,32 ino 4 found 1 [8/3) 7376914 W0x10
2083 // Profile Saver-5504 [000] ...1 175002.714413: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2084 // Profile Saver-5504 [000] ...1 175002.714414: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2085 // Profile Saver-5504 [000] ...1 175002.714420: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller __ext4_ext_dirty+0x104/0x170
2086 // Profile Saver-5504 [000] ...1 175002.714423: ext4_ext_remove_space_done: dev 259,32 ino 1311176 since 0 end 4294967294 depth 0 partial 0 remaining_entries 0
2087 // Profile Saver-5504 [000] ...1 175002.714425: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller __ext4_ext_dirty+0x104/0x170
2088 // Profile Saver-5504 [000] ...1 175002.714433: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_truncate+0x3c4/0x4b8
2089 // Profile Saver-5504 [000] ...1 175002.714436: ext4_truncate_exit: dev 259,32 ino 1311176 blocks 8
2090 // Profile Saver-5504 [000] ...1 175002.714437: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2091 // Profile Saver-5504 [000] ...1 175002.714438: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2092 // Profile Saver-5504 [000] ...1 175002.714462: ext4_da_write_begin: dev 259,32 ino 1311176 pos 0 len 4 flags 0
2093 // Profile Saver-5504 [000] ...1 175002.714472: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2094 // Profile Saver-5504 [000] ...1 175002.714477: ext4_es_lookup_extent_enter: dev 259,32 ino 1311176 lblk 0
2095 // Profile Saver-5504 [000] ...1 175002.714477: ext4_es_lookup_extent_exit: dev 259,32 ino 1311176 found 0 [0/0) 0
2096 // Profile Saver-5504 [000] ...1 175002.714480: ext4_ext_map_blocks_enter: dev 259,32 ino 1311176 lblk 0 len 1 flags
2097 // Profile Saver-5504 [000] ...1 175002.714485: ext4_es_find_delayed_extent_range_enter: dev 259,32 ino 1311176 lblk 0
2098 // Profile Saver-5504 [000] ...1 175002.714488: ext4_es_find_delayed_extent_range_exit: dev 259,32 ino 1311176 es [0/0) mapped 0 status
2099 // Profile Saver-5504 [000] ...1 175002.714490: ext4_es_insert_extent: dev 259,32 ino 1311176 es [0/4294967295) mapped 576460752303423487 status H
2100 // Profile Saver-5504 [000] ...1 175002.714495: ext4_ext_map_blocks_exit: dev 259,32 ino 1311176 flags lblk 0 pblk 4294967296 len 1 mflags ret 0
2101 // Profile Saver-5504 [000] ...2 175002.714501: ext4_da_reserve_space: dev 259,32 ino 1311176 mode 0100600 i_blocks 8 reserved_data_blocks 1 reserved_meta_blocks 0
2102 // Profile Saver-5504 [000] ...1 175002.714505: ext4_es_insert_extent: dev 259,32 ino 1311176 es [0/1) mapped 576460752303423487 status D
2103 // Profile Saver-5504 [000] ...1 175002.714513: ext4_da_write_end: dev 259,32 ino 1311176 pos 0 len 4 copied 4
2104 // Profile Saver-5504 [000] ...1 175002.714519: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2105 // Profile Saver-5504 [000] ...1 175002.714520: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2106 // Profile Saver-5504 [000] ...1 175002.714527: ext4_da_write_begin: dev 259,32 ino 1311176 pos 4 len 4 flags 0
2107 // Profile Saver-5504 [000] ...1 175002.714529: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2108 // Profile Saver-5504 [000] ...1 175002.714531: ext4_da_write_end: dev 259,32 ino 1311176 pos 4 len 4 copied 4
2109 // Profile Saver-5504 [000] ...1 175002.714532: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2110 // Profile Saver-5504 [000] ...1 175002.714532: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2111 // Profile Saver-5504 [000] ...1 175002.715313: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2112 // Profile Saver-5504 [000] ...1 175002.715322: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2113 // Profile Saver-5504 [000] ...1 175002.723849: ext4_da_write_begin: dev 259,32 ino 1311176 pos 8 len 5 flags 0
2114 // Profile Saver-5504 [000] ...1 175002.723862: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2115 // Profile Saver-5504 [000] ...1 175002.723873: ext4_da_write_end: dev 259,32 ino 1311176 pos 8 len 5 copied 5
2116 // Profile Saver-5504 [000] ...1 175002.723877: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2117 // Profile Saver-5504 [000] ...1 175002.723879: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2118 // Profile Saver-5504 [000] ...1 175002.726857: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2119 // Profile Saver-5504 [000] ...1 175002.726867: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2120 // Profile Saver-5504 [000] ...1 175002.726881: ext4_da_write_begin: dev 259,32 ino 1311176 pos 13 len 4 flags 0
2121 // Profile Saver-5504 [000] ...1 175002.726883: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2122 // Profile Saver-5504 [000] ...1 175002.726890: ext4_da_write_end: dev 259,32 ino 1311176 pos 13 len 4 copied 4
2123 // Profile Saver-5504 [000] ...1 175002.726892: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2124 // Profile Saver-5504 [000] ...1 175002.726892: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2125 // Profile Saver-5504 [000] ...1 175002.726900: ext4_da_write_begin: dev 259,32 ino 1311176 pos 17 len 4079 flags 0
2126 // Profile Saver-5504 [000] ...1 175002.726901: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2127 // Profile Saver-5504 [000] ...1 175002.726904: ext4_da_write_end: dev 259,32 ino 1311176 pos 17 len 4079 copied 4079
2128 // Profile Saver-5504 [000] ...1 175002.726905: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2129 // Profile Saver-5504 [000] ...1 175002.726906: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2130 // Profile Saver-5504 [000] ...1 175002.726908: ext4_da_write_begin: dev 259,32 ino 1311176 pos 4096 len 2780 flags 0
2131 // Profile Saver-5504 [000] ...1 175002.726916: ext4_journal_start: dev 259,32 blocks, 1 rsv_blocks, 0 caller ext4_da_write_begin+0x3d4/0x518
2132 // Profile Saver-5504 [000] ...1 175002.726921: ext4_es_lookup_extent_enter: dev 259,32 ino 1311176 lblk 1
2133 // Profile Saver-5504 [000] ...1 175002.726924: ext4_es_lookup_extent_exit: dev 259,32 ino 1311176 found 1 [1/4294967294) 576460752303423487 H0x10
2134 // Profile Saver-5504 [000] ...2 175002.726931: ext4_da_reserve_space: dev 259,32 ino 1311176 mode 0100600 i_blocks 8 reserved_data_blocks 2 reserved_meta_blocks 0
2135 // Profile Saver-5504 [000] ...1 175002.726933: ext4_es_insert_extent: dev 259,32 ino 1311176 es [1/1) mapped 576460752303423487 status D
2136 // Profile Saver-5504 [000] ...1 175002.726940: ext4_da_write_end: dev 259,32 ino 1311176 pos 4096 len 2780 copied 2780
2137 // Profile Saver-5504 [000] ...1 175002.726941: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2138 // Profile Saver-5504 [000] ...1 175002.726942: ext4_mark_inode_dirty: dev 259,32 ino 1311176 caller ext4_dirty_inode+0x48/0x68
2139 // d.process.acor-27885 [000] ...1 175018.227675: ext4_journal_start: dev 259,32 blocks, 2 rsv_blocks, 0 caller ext4_dirty_inode+0x30/0x68
2140 // d.process.acor-27885 [000] ...1 175018.227699: ext4_mark_inode_dirty: dev 259,32 ino 3278189 caller ext4_dirty_inode+0x48/0x68
2141 // d.process.acor-27885 [000] ...1 175018.227839: ext4_sync_file_enter: dev 259,32 ino 3278183 parent 3277001 datasync 1
2142 // d.process.acor-27885 [000] ...1 175018.227847: ext4_writepages: dev 259,32 ino 3278183 nr_to_write 9223372036854775807 pages_skipped 0 range_start 0 range_end 9223372036854775807 sync_mode 1 for_kupdate 0 range_cyclic 0 writeback_index 2
2143 // d.process.acor-27885 [000] ...1 175018.227852: ext4_writepages_result: dev 259,32 ino 3278183 ret 0 pages_written 0 pages_skipped 0 sync_mode 1 writeback_index 2
2144 // clang-format on
2145
2146 static ExamplePage g_full_page_ext4{
2147 "synthetic",
2148 R"(
2149 00000000: 50fe 5852 279f 0000 c80f 00c0 ffff ffff P.XR'...........
2150 00000010: 0800 0000 5701 0001 8406 0000 2000 3010 ....W....... .0.
2151 00000020: 566b 0000 8829 e86a 91ff ffff 0200 0000 Vk...).j........
2152 00000030: 0000 0000 2873 0100 1b01 0001 8406 0000 ....(s..........
2153 00000040: 2000 3010 9200 0000 1500 2c00 0000 0000 .0.......,.....
2154 00000050: a029 e86a 91ff ffff 0ac8 0400 1e01 0001 .).j............
2155 00000060: 8406 0000 2000 3010 2866 0100 1500 2c00 .... .0.(f....,.
2156 00000070: 0000 0000 0050 0000 0000 0000 0010 0000 .....P..........
2157 00000080: 0000 0000 a804 0400 5701 0001 8406 0000 ........W.......
2158 00000090: 2000 3010 91ff ffff 586f e86a 91ff ffff .0.....Xo.j....
2159 000000a0: 0100 0000 0000 0000 c83a 0300 6c01 0001 .........:..l...
2160 000000b0: 8406 0000 2000 3010 0000 0000 1500 2c00 .... .0.......,.
2161 000000c0: 0000 0000 0500 0000 5701 0001 ac6c 0100 ........W....l..
2162 000000d0: 6d01 0001 8406 0000 2000 3010 91ff ffff m....... .0.....
2163 000000e0: 1500 2c00 0000 0000 0500 0000 faff ffff ..,.............
2164 000000f0: ffff ffff ffff ff07 184e 0000 0100 0000 .........N......
2165 00000100: ec08 0200 3f01 0002 8406 0000 2000 3010 ....?....... .0.
2166 00000110: 0000 0000 1500 2c00 0000 0000 0800 0000 ......,.........
2167 00000120: 0000 0000 0600 0000 0000 0000 8081 0000 ................
2168 00000130: 0000 0000 ec24 0100 6701 0001 8406 0000 .....$..g.......
2169 00000140: 2000 3010 0000 0000 1500 2c00 0000 0000 .0.......,.....
2170 00000150: 0500 0000 0100 0000 ffff ffff ffff ff07 ................
2171 00000160: 0400 0000 7b04 3200 2a30 0500 2101 0001 ....{.2.*0..!...
2172 00000170: 8406 0000 2000 3010 0000 0000 1500 2c00 .... .0.......,.
2173 00000180: 0000 0000 0050 0000 0000 0000 0010 0000 .....P..........
2174 00000190: 0010 0000 288b 0200 5701 0001 8406 0000 ....(...W.......
2175 000001a0: 2000 3010 0000 0000 8829 e86a 91ff ffff .0......).j....
2176 000001b0: 0200 0000 0000 0000 0832 0100 1b01 0001 .........2......
2177 000001c0: 8406 0000 2000 3010 566b 0000 1500 2c00 .... .0.Vk....,.
2178 000001d0: 0000 0000 a029 e86a 91ff ffff eaa0 0400 .....).j........
2179 000001e0: 1e01 0001 8406 0000 2000 3010 280b 0400 ........ .0.(...
2180 000001f0: 1500 2c00 0000 0000 0060 0000 0000 0000 ..,......`......
2181 00000200: 980b 0000 0000 0000 88d0 0300 5701 0001 ............W...
2182 00000210: 8406 0000 2000 3010 566b 0000 586f e86a .... .0.Vk..Xo.j
2183 00000220: 91ff ffff 0100 0000 0000 0000 c813 0300 ................
2184 00000230: 6c01 0001 8406 0000 2000 3010 566b 0000 l....... .0.Vk..
2185 00000240: 1500 2c00 0000 0000 0600 0000 0000 0000 ..,.............
2186 00000250: ac5f 0100 6d01 0001 8406 0000 2000 3010 ._..m....... .0.
2187 00000260: 1100 3010 1500 2c00 0000 0000 0600 0000 ..0...,.........
2188 00000270: f9ff ffff ffff ffff ffff ff07 185a ea6a .............Z.j
2189 00000280: 0100 0000 4c02 0200 3f01 0002 8406 0000 ....L...?.......
2190 00000290: 2000 3010 566b 0000 1500 2c00 0000 0000 .0.Vk....,.....
2191 000002a0: 0800 0000 0000 0000 0700 0000 0000 0000 ................
2192 000002b0: 8081 0000 6d01 0001 0c0b 0100 6701 0001 ....m.......g...
2193 000002c0: 8406 0000 2000 3010 0000 0000 1500 2c00 .... .0.......,.
2194 000002d0: 0000 0000 0600 0000 0100 0000 ffff ffff ................
2195 000002e0: ffff ff07 049a 0100 5701 0001 aa1c 0500 ........W.......
2196 000002f0: 2101 0001 8406 0000 2000 3010 91ff ffff !....... .0.....
2197 00000300: 1500 2c00 0000 0000 0060 0000 0000 0000 ..,......`......
2198 00000310: 980b 0000 980b 0000 889e 0200 5701 0001 ............W...
2199 00000320: 8406 0000 2000 3010 91ff ffff 8829 e86a .... .0......).j
2200 00000330: 91ff ffff 0200 0000 0000 0000 8838 0100 .............8..
2201 00000340: 1b01 0001 8406 0000 2000 3010 91ff ffff ........ .0.....
2202 00000350: 1500 2c00 0000 0000 a029 e86a 91ff ffff ..,......).j....
2203 00000360: 2ab8 1800 3501 0001 8406 0000 2000 3010 *...5....... .0.
2204 00000370: feff ffff 1500 2c00 0000 0000 0800 2c00 ......,.......,.
2205 00000380: 0000 0000 0000 0000 2000 3010 32fe 0300 ........ .0.2...
2206 00000390: 2201 0001 8406 0000 2000 3010 0000 0000 "....... .0.....
2207 000003a0: 1500 2c00 0000 0000 ffff ffff ffff ff7f ..,.............
2208 000003b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2209 000003c0: ffff ffff ffff ff7f 0000 0000 0000 0000 ................
2210 000003d0: 0100 0000 0000 0000 887e 0800 5701 0001 .........~..W...
2211 000003e0: 8406 0000 2000 3010 7b04 3200 7c3f e86a .... .0.{.2.|?.j
2212 000003f0: 91ff ffff 0a00 0000 0000 0000 ec2d 0300 .............-..
2213 00000400: 2301 0001 8406 0000 2000 3010 7b04 3200 #....... .0.{.2.
2214 00000410: 1500 2c00 0000 0000 0000 0000 0000 0000 ..,.............
2215 00000420: ffff ffff ffff ff7f 0100 0000 3c01 0001 ............<...
2216 00000430: 0a42 0c00 2401 0001 8406 0000 2000 3010 .B..$....... .0.
2217 00000440: 0800 0000 1500 2c00 0000 0000 0000 0000 ......,.........
2218 00000450: 0000 0000 0700 0000 0002 0000 885f 0100 ............._..
2219 00000460: 6c01 0001 8406 0000 2000 3010 0100 0000 l....... .0.....
2220 00000470: 1500 2c00 0000 0000 0000 0000 566b 0000 ..,.........Vk..
2221 00000480: 0c25 0100 6d01 0001 8406 0000 2000 3010 .%..m....... .0.
2222 00000490: 0400 0000 1500 2c00 0000 0000 0000 0000 ......,.........
2223 000004a0: 0700 0000 ffff ffff ffff ff07 1400 0000 ................
2224 000004b0: 0100 0000 caee 0100 5101 0001 8406 0000 ........Q.......
2225 000004c0: 2000 3010 1100 0000 1500 2c00 0000 0000 .0.......,.....
2226 000004d0: 0000 0000 0700 0000 2500 0000 2000 3010 ........%... .0.
2227 000004e0: 323b 0600 3201 0001 8406 0000 2000 3010 2;..2....... .0.
2228 000004f0: c86e 0000 1500 2c00 0000 0000 0700 0000 .n....,.........
2229 00000500: 0000 0000 0000 0000 0000 0000 0080 b000 ................
2230 00000510: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2231 00000520: 0000 0000 2024 0000 0400 0000 ae0a 1a00 .... $..........
2232 00000530: 3a01 0001 8406 0000 2000 3010 0000 0000 :....... .0.....
2233 00000540: 1500 2c00 0000 0000 0000 0000 0000 0000 ..,.............
2234 00000550: 6101 0000 0700 0000 0000 0000 cf63 0000 a............c..
2235 00000560: 4100 0000 0700 0000 b4c5 0200 3301 0001 A...........3...
2236 00000570: 8406 0000 2000 3010 2000 3010 1500 2c00 .... .0. .0...,.
2237 00000580: 0000 0000 cfe3 2000 0000 0000 0700 0000 ...... .........
2238 00000590: 0000 0000 0000 0000 0000 0000 0080 b000 ................
2239 000005a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2240 000005b0: 0000 0000 2024 0000 6c01 0001 4859 0400 .... $..l...HY..
2241 000005c0: 1b01 0001 8406 0000 2000 3010 0000 0000 ........ .0.....
2242 000005d0: 1500 2c00 0000 0000 9c99 ea6a 91ff ffff ..,........j....
2243 000005e0: c850 0500 6001 0001 8406 0000 2000 3010 .P..`....... .0.
2244 000005f0: 0000 0000 1500 2c00 0000 0000 0000 0000 ......,.........
2245 00000600: 0700 0000 2ee6 0200 3e01 0002 8406 0000 ........>.......
2246 00000610: 2000 3010 566b 0000 1500 2c00 0000 0000 .0.Vk....,.....
2247 00000620: 0800 0000 0000 0000 0700 0000 0700 0000 ................
2248 00000630: 0000 0000 0000 0000 0100 0000 8081 3010 ..............0.
2249 00000640: a804 0400 5701 0001 8406 0000 2000 3010 ....W....... .0.
2250 00000650: cb07 3200 885a ea6a 91ff ffff 0100 0000 ..2..Z.j........
2251 00000660: 0000 0000 8875 0300 6c01 0001 8406 0000 .....u..l.......
2252 00000670: 2000 3010 0300 0000 0300 0000 0000 0000 .0.............
2253 00000680: 0100 0000 0100 0000 ccd4 0100 6d01 0001 ............m...
2254 00000690: 8406 0000 2000 3010 cb07 3200 0300 0000 .... .0...2.....
2255 000006a0: 0000 0000 0000 0000 0200 0000 2724 0000 ............'$..
2256 000006b0: 0000 0000 1100 3010 0100 0000 a850 0500 ......0......P..
2257 000006c0: 5701 0001 8406 0000 2000 3010 0000 0000 W....... .0.....
2258 000006d0: 885a ea6a 91ff ffff 0100 0000 0000 0000 .Z.j............
2259 000006e0: 680f 0200 6c01 0001 8406 0000 2000 3010 h...l....... .0.
2260 000006f0: 0000 0000 0400 0000 0000 0000 0100 0000 ................
2261 00000700: 6d01 0001 ac79 0100 6d01 0001 8406 0000 m....y..m.......
2262 00000710: 2000 3010 0000 0000 0400 0000 0000 0000 .0.............
2263 00000720: 0000 0000 0200 0000 2924 0000 0000 0000 ........)$......
2264 00000730: 1143 0200 0100 0000 2818 0400 5701 0001 .C......(...W...
2265 00000740: 8406 0000 2000 3010 0000 0000 8829 e86a .... .0......).j
2266 00000750: 91ff ffff 0200 0000 0000 0000 8838 0100 .............8..
2267 00000760: 1b01 0001 8406 0000 2000 3010 0400 0000 ........ .0.....
2268 00000770: 1500 2c00 0000 0000 a029 e86a 91ff ffff ..,......).j....
2269 00000780: 0e89 0300 5301 0001 8406 0000 2000 3010 ....S....... .0.
2270 00000790: e128 0000 1500 2c00 0000 0000 2500 0000 .(....,.....%...
2271 000007a0: 0000 0000 cfe3 2000 0000 0000 0000 0000 ...... .........
2272 000007b0: 0700 0000 6000 0000 0700 0000 aca0 0100 ....`...........
2273 000007c0: 6701 0001 8406 0000 2000 3010 e128 0000 g....... .0..(..
2274 000007d0: 1500 2c00 0000 0000 0000 0000 0700 0000 ..,.............
2275 000007e0: cfe3 2000 0000 0000 01a2 0800 0000 0000 .. .............
2276 000007f0: 28b2 1e00 1b01 0001 8406 0000 2000 3010 (........... .0.
2277 00000800: e128 0000 1500 2c00 0000 0000 9846 e86a .(....,......F.j
2278 00000810: 91ff ffff 68d2 1b00 5701 0001 8406 0000 ....h...W.......
2279 00000820: 2000 3010 e128 0000 7c3f e86a 91ff ffff .0..(..|?.j....
2280 00000830: 0a00 0000 0000 0000 0c57 0200 2301 0001 .........W..#...
2281 00000840: 8406 0000 2000 3010 006c 0000 1500 2c00 .... .0..l....,.
2282 00000850: 0000 0000 0700 0000 0000 0000 f8ff ffff ................
2283 00000860: ffff ff7f 0100 0000 0000 0000 6e69 8200 ............ni..
2284 00000870: 2501 0001 8406 0000 2000 3010 ca6e 0000 %....... .0..n..
2285 00000880: 1500 2c00 0000 0000 0000 0000 0700 0000 ..,.............
2286 00000890: 0000 0000 0000 0000 0700 0000 0000 0000 ................
2287 000008a0: 0100 0000 0200 3010 3e13 bd82 5500 0000 ......0.>...U...
2288 000008b0: 0600 0000 3001 0001 8015 0000 2000 3010 ....0....... .0.
2289 000008c0: 0000 0000 c801 1400 0000 0000 8860 4404 .............`D.
2290 000008d0: 1c01 0001 8015 0000 2000 3010 2000 0000 ........ .0. ...
2291 000008e0: c801 1400 0000 0000 0000 0000 0000 0000 ................
2292 000008f0: 88a9 0300 5701 0001 8015 0000 2000 3010 ....W....... .0.
2293 00000900: 0400 0000 1c1e e86a 91ff ffff 0300 0000 .......j........
2294 00000910: 0000 0000 a85a 1600 1b01 0001 8015 0000 .....Z..........
2295 00000920: 2000 3010 2000 3010 c801 1400 0000 0000 .0. .0.........
2296 00000930: c41e e86a 91ff ffff ca95 1c00 2901 0001 ...j........)...
2297 00000940: 8015 0000 2000 3010 2000 3010 c801 1400 .... .0. .0.....
2298 00000950: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2299 00000960: 0010 0000 c8fb 0100 2801 0001 8015 0000 ........(.......
2300 00000970: 2000 3010 5101 0001 c801 1400 0000 0000 .0.Q...........
2301 00000980: 0000 0000 0000 0000 6af1 0600 2901 0001 ........j...)...
2302 00000990: 8015 0000 2000 3010 0000 0000 c801 1400 .... .0.........
2303 000009a0: 0000 0000 0100 0000 0000 0000 0000 0000 ................
2304 000009b0: 0010 0000 488f 0000 2801 0001 8015 0000 ....H...(.......
2305 000009c0: 2000 3010 0200 ffff c801 1400 0000 0000 .0.............
2306 000009d0: 0100 0000 0000 0000 483b 0900 4d01 0001 ........H;..M...
2307 000009e0: 8015 0000 2000 3010 0000 0000 c801 1400 .... .0.........
2308 000009f0: 0000 0000 1800 0000 0000 0000 8852 0100 .............R..
2309 00000a00: 5701 0001 8015 0000 2000 3010 e128 0000 W....... .0..(..
2310 00000a10: 9ce9 e76a 91ff ffff 0a00 0000 0000 0000 ...j............
2311 00000a20: e615 0200 3001 0001 8015 0000 2000 3010 ....0....... .0.
2312 00000a30: 0155 0000 c801 1400 0000 0000 68d0 0000 .U..........h...
2313 00000a40: 1b01 0001 8015 0000 2000 3010 6606 3200 ........ .0.f.2.
2314 00000a50: c801 1400 0000 0000 acfa ea6a 91ff ffff ...........j....
2315 00000a60: 6a0f 0200 6901 0001 8015 0000 2000 3010 j...i....... .0.
2316 00000a70: 7106 3200 c801 1400 0000 0000 0000 0000 q.2.............
2317 00000a80: 0000 0000 ffff ffff 0000 0000 e895 0300 ................
2318 00000a90: 5701 0001 8015 0000 2000 3010 0300 0000 W....... .0.....
2319 00000aa0: acbe ea6a 91ff ffff 0100 0000 0000 0000 ...j............
2320 00000ab0: 8a38 0100 6501 0001 8015 0000 2000 3010 .8..e....... .0.
2321 00000ac0: c41e e86a c801 1400 0000 0000 0000 0000 ...j............
2322 00000ad0: feff ffff 0000 0000 0000 0000 ee86 0400 ................
2323 00000ae0: 6301 0001 8015 0000 2000 3010 0000 0000 c....... .0.....
2324 00000af0: c801 1400 0000 0000 0000 0000 0000 0000 ................
2325 00000b00: 0000 0000 0000 0000 4285 5000 0000 0000 ........B.P.....
2326 00000b10: 0200 0000 0000 0000 8e36 0200 6201 0001 .........6..b...
2327 00000b20: 8015 0000 2000 3010 7d55 0000 c801 1400 .... .0.}U......
2328 00000b30: 0000 0000 0000 0000 0100 0000 0000 0000 ................
2329 00000b40: 0000 0000 4285 5000 0000 0000 0000 0000 ....B.P.........
2330 00000b50: 0200 3010 8c5f 0100 3401 0001 8015 0000 ..0.._..4.......
2331 00000b60: 2000 3010 0000 0000 c801 1400 0000 0000 .0.............
2332 00000b70: 4285 5000 0000 0000 0200 0000 0000 0000 B.P.............
2333 00000b80: 1000 0000 8081 0000 aa43 0500 3c01 0001 .........C..<...
2334 00000b90: 8015 0000 2000 3010 2801 0001 c801 1400 .... .0.(.......
2335 00000ba0: 0000 0000 4205 0000 a100 0000 0200 0000 ....B...........
2336 00000bb0: 0200 0000 8871 0800 5701 0001 8015 0000 .....q..W.......
2337 00000bc0: 2000 3010 2000 3010 885a ea6a 91ff ffff .0. .0..Z.j....
2338 00000bd0: 0100 0000 0000 0000 4825 0400 6c01 0001 ........H%..l...
2339 00000be0: 8015 0000 2000 3010 2801 0001 0300 0000 .... .0.(.......
2340 00000bf0: 0000 0000 0400 0000 7106 3200 0c73 0100 ........q.2..s..
2341 00000c00: 6d01 0001 8015 0000 2000 3010 2901 0001 m....... .0.)...
2342 00000c10: 0300 0000 0000 0000 0400 0000 0100 0000 ................
2343 00000c20: 2680 0800 0000 0000 1100 0000 0100 0000 &...............
2344 00000c30: c845 0400 5701 0001 8015 0000 2000 3010 .E..W....... .0.
2345 00000c40: 2000 3010 885a ea6a 91ff ffff 0100 0000 .0..Z.j........
2346 00000c50: 0000 0000 e8c9 0000 6c01 0001 8015 0000 ........l.......
2347 00000c60: 2000 3010 2000 3010 0400 0000 0000 0000 .0. .0.........
2348 00000c70: 0800 0000 0500 0000 6cdd 0000 6d01 0001 ........l...m...
2349 00000c80: 8015 0000 2000 3010 2801 0001 0400 0000 .... .0.(.......
2350 00000c90: 0000 0000 0800 0000 0300 0000 1290 7000 ..............p.
2351 00000ca0: 0000 0000 1100 0000 0100 0000 6875 0300 ............hu..
2352 00000cb0: 5701 0001 8015 0000 2000 3010 7106 3200 W....... .0.q.2.
2353 00000cc0: 8829 e86a 91ff ffff 0200 0000 0000 0000 .).j............
2354 00000cd0: a847 0000 1b01 0001 8015 0000 2000 3010 .G.......... .0.
2355 00000ce0: 9ce9 e76a c801 1400 0000 0000 a029 e86a ...j.........).j
2356 00000cf0: 91ff ffff e83a 0300 1b01 0001 8015 0000 .....:..........
2357 00000d00: 2000 3010 7106 3200 c801 1400 0000 0000 .0.q.2.........
2358 00000d10: 9c99 ea6a 91ff ffff ae93 0100 6601 0001 ...j........f...
2359 00000d20: 8015 0000 2000 3010 acfa ea6a c801 1400 .... .0....j....
2360 00000d30: 0000 0000 0000 0000 feff ffff 0000 0000 ................
2361 00000d40: 2000 3010 0000 0000 0000 0000 0000 0000 .0.............
2362 00000d50: 0000 0000 48b6 0000 1b01 0001 8015 0000 ....H...........
2363 00000d60: 2000 3010 e128 0000 c801 1400 0000 0000 .0..(..........
2364 00000d70: 9c99 ea6a 91ff ffff a8ea 0300 1b01 0001 ...j............
2365 00000d80: 8015 0000 2000 3010 e128 0000 c801 1400 .... .0..(......
2366 00000d90: 0000 0000 08eb e76a 91ff ffff 885f 0100 .......j....._..
2367 00000da0: 4e01 0001 8015 0000 2000 3010 2efe 0300 N....... .0.....
2368 00000db0: c801 1400 0000 0000 0800 0000 0000 0000 ................
2369 00000dc0: e8bc 0000 5701 0001 8015 0000 2000 3010 ....W....... .0.
2370 00000dd0: 0000 0000 8829 e86a 91ff ffff 0200 0000 .....).j........
2371 00000de0: 0000 0000 c895 0000 1b01 0001 8015 0000 ................
2372 00000df0: 2000 3010 2000 3010 c801 1400 0000 0000 .0. .0.........
2373 00000e00: a029 e86a 91ff ffff cab2 0b00 1e01 0001 .).j............
2374 00000e10: 8015 0000 2000 3010 0000 0000 c801 1400 .... .0.........
2375 00000e20: 0000 0000 0000 0000 0000 0000 0400 0000 ................
2376 00000e30: 0000 0000 689a 0400 5701 0001 8015 0000 ....h...W.......
2377 00000e40: 2000 3010 0000 0000 586f e86a 91ff ffff .0.....Xo.j....
2378 00000e50: 0100 0000 0000 0000 8884 0200 6c01 0001 ............l...
2379 00000e60: 8015 0000 2000 3010 8829 e86a c801 1400 .... .0..).j....
2380 00000e70: 0000 0000 0000 0000 4100 0000 ac47 0000 ........A....G..
2381 00000e80: 6d01 0001 8015 0000 2000 3010 e128 0000 m....... .0..(..
2382 00000e90: c801 1400 0000 0000 0000 0000 0000 0000 ................
2383 00000ea0: 0000 0000 0000 0000 001c 0200 0000 0000 ................
2384 00000eb0: 2a66 0100 5101 0001 8015 0000 2000 3010 *f..Q....... .0.
2385 00000ec0: 0000 0000 c801 1400 0000 0000 0000 0000 ................
2386 00000ed0: 0100 0000 0000 0000 2000 3010 087e 0200 ........ .0..~..
2387 00000ee0: 6a01 0001 8015 0000 2000 3010 0100 0000 j....... .0.....
2388 00000ef0: c801 1400 0000 0000 0000 0000 0100 0000 ................
2389 00000f00: 8c11 0100 6b01 0001 8015 0000 2000 3010 ....k....... .0.
2390 00000f10: 1b01 0001 c801 1400 0000 0000 0000 0000 ................
2391 00000f20: 0000 0000 0000 0000 0000 0000 0028 0000 .............(..
2392 00000f30: 2000 3010 8c5f 0100 6701 0001 8015 0000 .0.._..g.......
2393 00000f40: 2000 3010 0000 0000 c801 1400 0000 0000 .0.............
2394 00000f50: 0000 0000 ffff ffff ffff ffff ffff ff07 ................
2395 00000f60: 0800 0000 0700 0000 6e02 0200 5301 0001 ........n...S...
2396 00000f70: 8015 0000 2000 3010 0100 0000 c801 1400 .... .0.........
2397 00000f80: 0000 0000 0000 0000 2000 3010 0000 0000 ........ .0.....
2398 00000f90: 0100 0000 0000 0000 0100 0000 0000 0000 ................
2399 00000fa0: 0000 0000 cc3a 0300 3f01 0002 8015 0000 .....:..?.......
2400 00000fb0: 2000 3010 7106 3200 c801 1400 0000 0000 .0.q.2.........
2401 00000fc0: 0800 0000 0000 0000 0100 0000 0000 0000 ................
2402 00000fd0: 8081 3010 3d00 0000 f542 0000 0000 0000 ..0.=....B......
2403 00000fe0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2404 00000ff0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
2405 )",
2406 };
2407
TEST(CpuReaderTest,ParseExt4WithOverwrite)2408 TEST(CpuReaderTest, ParseExt4WithOverwrite) {
2409 const ExamplePage* test_case = &g_full_page_ext4;
2410
2411 BundleProvider bundle_provider(base::kPageSize);
2412 ProtoTranslationTable* table = GetTable(test_case->name);
2413 auto page = PageFromXxd(test_case->data);
2414
2415 FtraceDataSourceConfig ds_config = EmptyConfig();
2416 ds_config.event_filter.AddEnabledEvent(
2417 table->EventToFtraceId(GroupAndName("sched", "sched_switch")));
2418
2419 FtraceMetadata metadata{};
2420 CompactSchedBuffer compact_buffer;
2421 const uint8_t* parse_pos = page.get();
2422 base::Optional<CpuReader::PageHeader> page_header =
2423 CpuReader::ParsePageHeader(&parse_pos, table->page_header_size_len());
2424
2425 const uint8_t* page_end = page.get() + base::kPageSize;
2426 ASSERT_TRUE(page_header.has_value());
2427 EXPECT_TRUE(page_header->lost_events); // data loss
2428 EXPECT_TRUE(parse_pos < page_end);
2429 EXPECT_TRUE(parse_pos + page_header->size < page_end);
2430
2431 size_t evt_bytes = CpuReader::ParsePagePayload(
2432 parse_pos, &page_header.value(), table, &ds_config, &compact_buffer,
2433 bundle_provider.writer(), &metadata);
2434
2435 EXPECT_LT(0u, evt_bytes);
2436
2437 auto bundle = bundle_provider.ParseProto();
2438 ASSERT_TRUE(bundle);
2439 }
2440
2441 } // namespace perfetto
2442