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| <!-- Copyright 2017 the V8 project authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
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| <head> |
| <!-- This will be overwritten by the v8.dev/tools exporter --> |
| <!-- ANALYTICS_PLACEHOLDER --> |
| <meta charset="utf-8"/> |
| <title>V8 Tick Processor</title> |
| <link rel="stylesheet" href="profview.css"> |
| <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet"> |
| <link href="https://fonts.googleapis.com/icon?family=Material+Icons" |
| rel="stylesheet"> |
| |
| <script src="profview.js"></script> |
| <script src="profile-utils.js"></script> |
| </head> |
| |
| <body onLoad="main.onLoad();" onResize="main.onResize();"> |
| <h3 style="margin-top: 2px;"> |
| Chrome V8 profiling log processor |
| </h3> |
| |
| <input type="file" id="fileinput" /><div id="source-status"></div> |
| <br> |
| <hr> |
| |
| <div id="help"> |
| Usage: |
| |
| <br> |
| <br> |
| |
| Record the profile: |
| <pre> |
| d8 --prof your-file.js |
| </pre> |
| |
| Then process the file (this resolves C++ symbols and produces |
| a JSON file with the profile data): |
| |
| <pre> |
| <v8-dir>/tools/linux-tick-processor --preprocess v8.log > v8.json |
| </pre> |
| |
| To view the profile, click the <i>Choose file</i> button above and choose |
| the file in the dialog box. |
| |
| <br> |
| <br> |
| For recording a profile from Chrome use: |
| <pre> |
| --no-sandbox --js-flags=--prof |
| </pre> |
| |
| If running on Android use also use --single-process: |
| <pre> |
| --single-process --no-sandbox --js-flags=--prof |
| </pre> |
| |
| If the profile is from Android pass the unstripped Chrome library to |
| resolve C++ symbols when processing the file using linux-tick-processor. |
| <pre> |
| <v8-dir>/tools/linux-tick-processor --preprocess --apk-embedded-library=./out/Release/lib.unstripped/libchrome.so v8.log > v8.json |
| </pre> |
| |
| More detailed instructions for Android here: https://v8.dev/docs/profile-chromium#android |
| </div> |
| |
| <div id="timeline" style="display : none"> |
| <div> |
| <canvas id="timeline-canvas"/> |
| </div> |
| Legend: |
| <div id="timeline-legend"> |
| </div> |
| <label><input type="checkbox" id="show-logging"> Show logging</label> |
| <div> |
| Current code object: <span id="timeline-currentCode"></span> |
| <button id="source-viewer-hide-button">Hide source</button> |
| </div> |
| <div> |
| <table id="source-viewer"> </table> |
| </div> |
| </div> |
| |
| <br> |
| |
| <div id="mode-bar" style="display : none"> |
| </div> |
| |
| <div id="calltree" style="display : none"> |
| <br> |
| Attribution: |
| <select id="calltree-attribution"> |
| </select> |
| Top-level tree buckets: |
| <select id="calltree-categories"> |
| </select> |
| Sort by: |
| <select id="calltree-sort"> |
| </select> |
| |
| <br> |
| <br> |
| |
| <table id="calltree-table" class="calltree"> |
| <thead> |
| <tr> |
| <th class="numeric">Time (incl)</th> |
| <th class="numeric">% of parent</th> |
| <th id="calltree-table-own-time-header" class="numeric">Own time</th> |
| <th>Function/category</th> |
| <th class="numeric">Ticks</th> |
| <th id="calltree-table-own-ticks-header" class="numeric">Own ticks</th> |
| </tr> |
| </thead> |
| <tbody> |
| </tbody> |
| </table> |
| </div> |
| |
| <div id="summary" style="display : none"> |
| </div> |
| |
| <div id="function-details" style="display : none"> |
| </div> |
| |
| <p style="font-style:italic;"> |
| <br> |
| <br> |
| <br> |
| Copyright the V8 Authors - Last change to this page: 2020/12/04 |
| </p> |
| |
| </body> |
| </html> |
