#!/usr/bin/env python3 # Copyright (C) 2020 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from os import sys, path import synth_common trace = synth_common.create_trace() # Add a tracing_started packet which should cause all ftrace # events before this ts to be dropped. packet = trace.add_packet(ts=100) packet.service_event.tracing_started = True # Everything in this packet should be dropped. trace.add_ftrace_packet(cpu=0) trace.add_sched(ts=50, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') trace.add_sched(ts=60, prev_pid=2, next_pid=1, prev_comm='t2', next_comm='t1') trace.add_sched(ts=70, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') trace.add_sched( ts=80, prev_pid=2, next_pid=0, prev_comm='t2', next_comm='swapper') # The first 2 slices here should also be dropped but the last one should be # retained. trace.add_ftrace_packet(cpu=2) trace.add_sched( ts=80, prev_pid=0, next_pid=1, prev_comm='swapper', next_comm='t1') trace.add_sched(ts=90, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') trace.add_sched(ts=100, prev_pid=2, next_pid=1, prev_comm='t2', next_comm='t1') trace.add_sched(ts=110, prev_pid=1, next_pid=2, prev_comm='t1', next_comm='t2') sys.stdout.buffer.write(trace.trace.SerializeToString())