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Side by Side Diff: chrome/browser/resources/tracing/timeline_model.js

Issue 7555005: Moving the contents of chrome://gpu Profiling to chrome://tracing. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 9 years, 4 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 5
6 /** 6 /**
7 * @fileoverview TimelineModel is a parsed representation of the 7 * @fileoverview TimelineModel is a parsed representation of the
8 * TraceEvents obtained from base/trace_event in which the begin-end 8 * TraceEvents obtained from base/trace_event in which the begin-end
9 * tokens are converted into a hierarchy of processes, threads, 9 * tokens are converted into a hierarchy of processes, threads,
10 * subrows, and slices. 10 * subrows, and slices.
11 * 11 *
12 * The building block of the model is a slice. A slice is roughly 12 * The building block of the model is a slice. A slice is roughly
13 * equivalent to function call executing on a specific thread. As a 13 * equivalent to function call executing on a specific thread. As a
14 * result, slices may have one or more subslices. 14 * result, slices may have one or more subslices.
15 * 15 *
16 * A thread contains one or more subrows of slices. Row 0 corresponds to 16 * A thread contains one or more subrows of slices. Row 0 corresponds to
17 * the "root" slices, e.g. the topmost slices. Row 1 contains slices that 17 * the "root" slices, e.g. the topmost slices. Row 1 contains slices that
18 * are nested 1 deep in the stack, and so on. We use these subrows to draw 18 * are nested 1 deep in the stack, and so on. We use these subrows to draw
19 * nesting tasks. 19 * nesting tasks.
20 * 20 *
21 */ 21 */
22 cr.define('gpu', function() { 22 cr.define('tracing', function() {
23 /** 23 /**
24 * A TimelineSlice represents an interval of time on a given thread 24 * A TimelineSlice represents an interval of time on a given thread
25 * associated with a specific trace event. For example, 25 * associated with a specific trace event. For example,
26 * TRACE_EVENT_BEGIN1("x","myArg", 7) at time=0.1ms 26 * TRACE_EVENT_BEGIN1("x","myArg", 7) at time=0.1ms
27 * TRACE_EVENT_END() at time=0.3ms 27 * TRACE_EVENT_END() at time=0.3ms
28 * Results in a single timeline slice from 0.1 with duration 0.2. 28 * Results in a single timeline slice from 0.1 with duration 0.2.
29 * 29 *
30 * All time units are stored in milliseconds. 30 * All time units are stored in milliseconds.
31 * @constructor 31 * @constructor
32 */ 32 */
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410 410
411 }; 411 };
412 412
413 return { 413 return {
414 TimelineSlice: TimelineSlice, 414 TimelineSlice: TimelineSlice,
415 TimelineThread: TimelineThread, 415 TimelineThread: TimelineThread,
416 TimelineProcess: TimelineProcess, 416 TimelineProcess: TimelineProcess,
417 TimelineModel: TimelineModel 417 TimelineModel: TimelineModel
418 }; 418 };
419 }); 419 });
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