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| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <!-- | 2 <!-- |
| 3 Copyright 2017 The Chromium Authors. All rights reserved. | 3 Copyright 2017 The Chromium Authors. All rights reserved. |
| 4 Use of this source code is governed by a BSD-style license that can be | 4 Use of this source code is governed by a BSD-style license that can be |
| 5 found in the LICENSE file. | 5 found in the LICENSE file. |
| 6 --> | 6 --> |
| 7 | 7 |
| 8 <link rel="import" href="/tracing/base/math.html"> | 8 <link rel="import" href="/tracing/base/math/math.html"> |
| 9 <link rel="import" href="/tracing/core/auditor.html"> | 9 <link rel="import" href="/tracing/core/auditor.html"> |
| 10 <link rel="import" href="/tracing/model/resource_usage_series.html"> | 10 <link rel="import" href="/tracing/model/resource_usage_series.html"> |
| 11 | 11 |
| 12 <script> | 12 <script> |
| 13 'use strict'; | 13 'use strict'; |
| 14 | 14 |
| 15 tr.exportTo('tr.e.audits', function() { | 15 tr.exportTo('tr.e.audits', function() { |
| 16 /** | 16 /** |
| 17 * Auditor that analyzes the model and, if possible, adds data to it | 17 * Auditor that analyzes the model and, if possible, adds data to it |
| 18 * showing CPU usage. | 18 * showing CPU usage. |
| (...skipping 67 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 86 // s.cpuSelfTime : cpuDuration over slice s but not its subslices. | 86 // s.cpuSelfTime : cpuDuration over slice s but not its subslices. |
| 87 // | 87 // |
| 88 // We're looking for | 88 // We're looking for |
| 89 // s.cpuSelfTimeRatio: average CPU usage over the area covered by | 89 // s.cpuSelfTimeRatio: average CPU usage over the area covered by |
| 90 // s but not any of its subslices. | 90 // s but not any of its subslices. |
| 91 // = s.cpuSelfTime / s.selfTime | 91 // = s.cpuSelfTime / s.selfTime |
| 92 if (e.selfTime === 0 || e.selfTime === undefined || | 92 if (e.selfTime === 0 || e.selfTime === undefined || |
| 93 e.cpuSelfTime === undefined) { | 93 e.cpuSelfTime === undefined) { |
| 94 continue; | 94 continue; |
| 95 } | 95 } |
| 96 var usage = tr.b.clamp(e.cpuSelfTime / e.selfTime, 0, 1); | 96 var usage = tr.b.math.clamp(e.cpuSelfTime / e.selfTime, 0, 1); |
| 97 | 97 |
| 98 // Go through the area covered by this slice but not its subslices | 98 // Go through the area covered by this slice but not its subslices |
| 99 // and add the cpuSelfTimeRatio contribution over this area. | 99 // and add the cpuSelfTimeRatio contribution over this area. |
| 100 var lastTime = e.start; | 100 var lastTime = e.start; |
| 101 for (var subslice of e.subSlices) { | 101 for (var subslice of e.subSlices) { |
| 102 result.push({usage, start: lastTime, end: subslice.start}); | 102 result.push({usage, start: lastTime, end: subslice.start}); |
| 103 lastTime = subslice.end; | 103 lastTime = subslice.end; |
| 104 } | 104 } |
| 105 result.push({usage, start: lastTime, end: e.end}); | 105 result.push({usage, start: lastTime, end: e.end}); |
| 106 } | 106 } |
| 107 } | 107 } |
| 108 return result; | 108 return result; |
| 109 } | 109 } |
| 110 } | 110 } |
| 111 | 111 |
| 112 tr.c.Auditor.register(CpuUsageAuditor); | 112 tr.c.Auditor.register(CpuUsageAuditor); |
| 113 | 113 |
| 114 return { | 114 return { |
| 115 CpuUsageAuditor: CpuUsageAuditor | 115 CpuUsageAuditor: CpuUsageAuditor |
| 116 }; | 116 }; |
| 117 }); | 117 }); |
| 118 </script> | 118 </script> |
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Chromium Code Reviews
Issue 2771723003:
[tracing] Move math utilities from base into their own subdirectory (attempt 2) (Closed)
