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27
28<html lang="en">
29<head>
30  <meta charset="utf-8"/>
31  <title>V8 Tick Processor</title>
32
33  <style type="text/css">
34    body {
35      font-family: Verdana, Arial, Helvetica, sans-serif;
36      font-size: 10pt;
37    }
38    h4 {
39      margin-bottom: 0px;
40    }
41    p {
42      margin-top: 0px;
43    }
44  </style>
45
46  <script src="splaytree.js"></script>
47  <script src="codemap.js"></script>
48  <script src="csvparser.js"></script>
49  <script src="consarray.js"></script>
50  <script src="profile.js"></script>
51  <script src="profile_view.js"></script>
52  <script src="logreader.js"></script>
53  <script src="tickprocessor.js"></script>
54
55  <script type="text/javascript">
56
57var v8log_content;
58var textout;
59
60function load_logfile(evt) {
61  textout.value = "";
62  var f = evt.target.files[0];
63  if (f) {
64    var reader = new FileReader();
65    reader.onload = function(event) {
66      v8log_content = event.target.result;
67      start_process();
68    };
69    reader.onerror = function(event) {
70      console.error("File could not be read! Code " + event.target.error.code);
71    };
72    reader.readAsText(f);
73  } else {
74    alert("Failed to load file");
75  }
76}
77
78function print(arg) {
79  textout.value+=arg+"\n";
80}
81
82function start_process() {
83  ArgumentsProcessor.DEFAULTS = {
84    logFileName: 'v8.log',
85    snapshotLogFileName: null,
86    platform: 'unix',
87    stateFilter: null,
88    callGraphSize: 5,
89    ignoreUnknown: false,
90    separateIc: false,
91    targetRootFS: '',
92    nm: 'nm'
93  };
94
95  var entriesProviders = {
96    'unix': UnixCppEntriesProvider,
97    'windows': WindowsCppEntriesProvider,
98    'mac': MacCppEntriesProvider
99  };
100
101  var snapshotLogProcessor; // not used
102
103  var tickProcessor = new TickProcessor(
104    new (entriesProviders[ArgumentsProcessor.DEFAULTS.platform])(
105        ArgumentsProcessor.DEFAULTS.nm,
106        ArgumentsProcessor.DEFAULTS.targetRootFS),
107    ArgumentsProcessor.DEFAULTS.separateIc,
108    ArgumentsProcessor.DEFAULTS.callGraphSize,
109    ArgumentsProcessor.DEFAULTS.ignoreUnknown,
110    ArgumentsProcessor.DEFAULTS.stateFilter,
111    snapshotLogProcessor);
112
113  tickProcessor.processLogChunk(v8log_content);
114  tickProcessor.printStatistics();
115}
116
117function Load() {
118  document.getElementById('fileinput').addEventListener(
119      'change', load_logfile, false);
120  textout = document.getElementById('textout');
121}
122</script>
123</head>
124<body onLoad="Load()">
125
126<h3 style="margin-top: 2px;">
127  Chrome V8 profiling log processor
128</h3>
129<p>
130Process V8's profiling information log (sampling profiler tick information)
131in your browser. Particularly useful if you don't have the V8 shell (d8)
132at hand on your system. You still have to run Chrome with the appropriate
133<a href="https://code.google.com/p/v8/wiki/ProfilingChromiumWithV8">
134  command line flags</a>
135to produce the profiling log.
136</p>
137<h4>Usage:</h4>
138<p>
139Click on the button and browse to the profiling log file (usually, v8.log).
140Process will start automatically and the output will be visible in the below
141text area.
142</p>
143<h4>Limitations and disclaimer:</h4>
144<p>
145This page offers a subset of the functionalities of the command-line tick
146processor utility in the V8 repository. In particular, this page cannot
147access the command-line utility that provides library symbol information,
148hence the [C++] section of the output stays empty. Also consider that this
149web-based tool is provided only for convenience and quick reference, you
150should refer to the
151<a href="https://code.google.com/p/v8/wiki/V8Profiler">
152  command-line</a>
153version for full output.
154</p>
155<p>
156<input type="file" id="fileinput" />
157</p>
158<p>
159<textarea name="myTextArea" cols="120" rows="40" wrap="off" id="textout"
160          readonly="yes"></textarea>
161</p>
162<p style="font-style:italic;">
163Copyright the V8 Authors - Last change to this page: 12/12/2012
164</p>
165
166
167</body>
168</html>
169