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gerrit-public.fairphone.software / fp2-dev / platform / external / v8 / b8a8cc1952d61a2f3a2568848933943a543b5d3e / . / tools / profviz / profviz.html
blob: d7dd9cb95080190fcb107436e907a62ebc1dec58 [file] [log] [blame]
Ben Murdochb8a8cc12014-11-26 15:28:44 +0000[diff] [blame^]1<!DOCTYPE html>
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27
28<html lang="en-us">
29<head>
30 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
31 <title>V8 profile log plotter</title>
32 <link rel="stylesheet" type="text/css" href="profviz.css">
33 <script src="profviz.js"></script>
34</head>
35
36<body onload="onload()">
37 <div id="content">
38
39 <img src="" id="plot" type="image/svg+xml" class="display"
40 width="1200" height="600" class="float-right"/>
41
42 <textarea id="prof" class="display" disabled=true></textarea>
43 <br/>
44
45 <table width="1200">
46 <tr>
47 <td width="330">
48 <button id="start" onclick="start()">
49 Start
50 </button>
51 <button id="reset" onclick="ui.reset(); worker.reset();">
52 Reset
53 </button>
54 <button id="toggledisplay" onclick="ui.toggle();">
55 Show profile
56 </button>
57 </td>
58 <td width="220">
59 <input type="file" id="file" onchange="ui.reset();"/>
60 </td>
61 <td width="300">
62 <label title="You can manually choose the range
63to plot only part of the log file.">
64 <span class="tooltip">Range</span>:
65 </label>
66 <input type="text" id="range_start" class="range"/>
67 <label>to</label>
68 <input type="text" id="range_end" class="range"/>
69 </td>
70 <td width="350">
71 <label title="We model profiling overhead by accounting a constant
72execution delay to each log entry. Adjust to better suit
73your computer's performance.">
74 <span class="tooltip">Delay per log entry</span>:
75 </label>
76 <input type="text" id="distortion" class="range" value="4500"/>
77 <label>picoseconds</label>
78 </td>
79 </tr>
80 </table>
81
82 <br/>
83 <textarea class="log" id="log" rows="8" disabled=true></textarea>
84
85 <div class="text">
86 <h1>
87 <a href="javascript:ui.info('instructions');" class="unroll">
88 Instructions
89 </a>
90 </h1>
91 <div id="instructions">
92 <ol>
93 <li>
94 Run V8 with
95 <span class="tt">--prof --log-timer-events</span>,
96 or alternatively,<br/>
97 Chrome with
98 <span class="tt">
99 --no-sandbox --js-flags="--prof --log-timer-events"
100 </span> to produce <span class="tt">v8.log</span>.
101 </li>
102 <li>
103 Open
104 <span class="tt">v8.log</span>
105 on this page. Don't worry, it won't be uploaded anywhere.
106 </li>
107 <li>
108 Click "Start" to start number crunching. This will take a while.
109 </li>
110 <li>
111 Click "Show plot/profile" to switch between the statistical profile and
112 the timeline plot.<br/>
113 C++ items are missing in the statistical profile because symbol
114 information is not available.<br>
115 Consider using the
116 <a href="https://code.google.com/p/v8/wiki/V8Profiler">
117 command-line utility
118 </a> instead.
119 </li>
120 </ol>
121 If you expect multiple V8 instances to run concurrently, for example
122 with several tabs in Chrome,<br/>
123 add the V8 flag <span class="tt">--logfile=v8.%p.log</span>
124 so that each instance writes to its own log file.
125 </div>
126 </div>
127
128 <div class="text">
129 <h1>
130 <a href="javascript:ui.info('credits');" class="unroll">
131 Credits
132 </a>
133 </h1>
134 <div id="credits">
135 <ul>
136 <li>
137 Christian Huettig for the
138 <a href="http://gnuplot.respawned.com/">Javascript port</a>
139 of Gnuplot 4.6.3.
140 </li>
141 <li>
142 The
143 <a href="https://github.com/kripken/emscripten">Emscripten compiler</a>
144 that made the port possible.
145 </li>
146 <li>
147 The <a href="http://www.gnuplot.info/">Gnuplot project</a>.
148 </li>
149 <li>
150 The <a href="https://developers.google.com/v8/">V8 project</a>.
151 </li>
152 </ul>
153 </div>
154 </div>
155
156</div>
157</body>
158</html>