1<!DOCTYPE html>
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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    platform: 'unix',
86    stateFilter: null,
87    callGraphSize: 5,
88    ignoreUnknown: false,
89    separateIc: false,
90    targetRootFS: '',
91    nm: 'nm'
92  };
93
94  var entriesProviders = {
95    'unix': UnixCppEntriesProvider,
96    'windows': WindowsCppEntriesProvider,
97    'mac': MacCppEntriesProvider
98  };
99
100  var tickProcessor = new TickProcessor(
101    new (entriesProviders[ArgumentsProcessor.DEFAULTS.platform])(
102        ArgumentsProcessor.DEFAULTS.nm,
103        ArgumentsProcessor.DEFAULTS.targetRootFS),
104    ArgumentsProcessor.DEFAULTS.separateIc,
105    ArgumentsProcessor.DEFAULTS.callGraphSize,
106    ArgumentsProcessor.DEFAULTS.ignoreUnknown,
107    ArgumentsProcessor.DEFAULTS.stateFilter);
108
109  tickProcessor.processLogChunk(v8log_content);
110  tickProcessor.printStatistics();
111}
112
113function Load() {
114  document.getElementById('fileinput').addEventListener(
115      'change', load_logfile, false);
116  textout = document.getElementById('textout');
117}
118</script>
119</head>
120<body onLoad="Load()">
121
122<h3 style="margin-top: 2px;">
123  Chrome V8 profiling log processor
124</h3>
125<p>
126Process V8's profiling information log (sampling profiler tick information)
127in your browser. Particularly useful if you don't have the V8 shell (d8)
128at hand on your system. You still have to run Chrome with the appropriate
129<a href="https://code.google.com/p/v8/wiki/ProfilingChromiumWithV8">
130  command line flags</a>
131to produce the profiling log.
132</p>
133<h4>Usage:</h4>
134<p>
135Click on the button and browse to the profiling log file (usually, v8.log).
136Process will start automatically and the output will be visible in the below
137text area.
138</p>
139<h4>Limitations and disclaimer:</h4>
140<p>
141This page offers a subset of the functionalities of the command-line tick
142processor utility in the V8 repository. In particular, this page cannot
143access the command-line utility that provides library symbol information,
144hence the [C++] section of the output stays empty. Also consider that this
145web-based tool is provided only for convenience and quick reference, you
146should refer to the
147<a href="https://code.google.com/p/v8/wiki/V8Profiler">
148  command-line</a>
149version for full output.
150</p>
151<p>
152<input type="file" id="fileinput" />
153</p>
154<p>
155<textarea name="myTextArea" cols="120" rows="40" wrap="off" id="textout"
156          readonly="yes"></textarea>
157</p>
158<p style="font-style:italic;">
159Copyright the V8 Authors - Last change to this page: 12/12/2012
160</p>
161
162
163</body>
164</html>
165