| <!DOCTYPE html> |
| <!-- |
| Copyright 2016 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/tracing/metrics/metric_registry.html"> |
| <link rel="import" href="/tracing/metrics/system_health/utils.html"> |
| <link rel="import" href="/tracing/value/histogram.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.metrics.sh', function() { |
| function webviewStartupMetric(values, model) { |
| var startupWallHist = new tr.v.Histogram('webview_startup_wall_time', |
| tr.b.Unit.byName.timeDurationInMs_smallerIsBetter); |
| startupWallHist.description = 'WebView startup wall time'; |
| var startupCPUHist = new tr.v.Histogram('webview_startup_cpu_time', |
| tr.b.Unit.byName.timeDurationInMs_smallerIsBetter); |
| startupCPUHist.description = 'WebView startup CPU time'; |
| var loadWallHist = new tr.v.Histogram('webview_url_load_wall_time', |
| tr.b.Unit.byName.timeDurationInMs_smallerIsBetter); |
| loadWallHist.description = 'WebView blank URL load wall time'; |
| var loadCPUHist = new tr.v.Histogram('webview_url_load_cpu_time', |
| tr.b.Unit.byName.timeDurationInMs_smallerIsBetter); |
| loadCPUHist.description = 'WebView blank URL load CPU time'; |
| |
| // TODO(alexandermont): Only iterate over the processes and threads that |
| // could contain these events. |
| for (var slice of model.getDescendantEvents()) { |
| if (!(slice instanceof tr.model.ThreadSlice)) |
| continue; |
| |
| // WebViewStartupInterval is the title of the section of code that is |
| // entered (via android.os.Trace.beginSection) when WebView is started |
| // up. This value is defined in TelemetryActivity.java. |
| if (slice.title === 'WebViewStartupInterval') { |
| startupWallHist.addSample(slice.duration); |
| startupCPUHist.addSample(slice.cpuDuration); |
| } |
| |
| // WebViewBlankUrlLoadInterval is the title of the section of code |
| // that is entered (via android.os.Trace.beginSection) when WebView |
| // is started up. This value is defined in TelemetryActivity.java. |
| if (slice.title === 'WebViewBlankUrlLoadInterval') { |
| loadWallHist.addSample(slice.duration); |
| loadCPUHist.addSample(slice.cpuDuration); |
| } |
| } |
| |
| values.addHistogram(startupWallHist); |
| values.addHistogram(startupCPUHist); |
| values.addHistogram(loadWallHist); |
| values.addHistogram(loadCPUHist); |
| } |
| |
| tr.metrics.MetricRegistry.register(webviewStartupMetric); |
| |
| return { |
| webviewStartupMetric: webviewStartupMetric |
| }; |
| }); |
| </script> |
