tools/perf/perf_tools/page_cycler.py - Issue 18261009: Have repeats understand "time"

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Side by Side Diff: tools/perf/perf_tools/page_cycler.py

Issue 18261009: Have repeats understand "time" (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: . Created 7 years, 5 months ago

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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.	1 # Copyright (c) 2012 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 """The page cycler measurement.	5 """The page cycler measurement.

6	6

7 This measurement registers a window load handler in which is forces a layout and	7 This measurement registers a window load handler in which is forces a layout and

8 then records the value of performance.now(). This call to now() measures the	8 then records the value of performance.now(). This call to now() measures the

9 time from navigationStart (immediately after the previous page's beforeunload	9 time from navigationStart (immediately after the previous page's beforeunload

10 event) until after the layout in the page's load event. In addition, two garbage	10 event) until after the layout in the page's load event. In addition, two garbage

(...skipping 104 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
115 return bool(tab.EvaluateJavaScript('__pc_load_time'))	115 return bool(tab.EvaluateJavaScript('__pc_load_time'))

116 util.WaitFor(_IsDone, 60)	116 util.WaitFor(_IsDone, 60)

117	117

118 for h in self._histograms:	118 for h in self._histograms:

119 h.GetValue(page, tab, results)	119 h.GetValue(page, tab, results)

120	120

121 results.Add('page_load_time', 'ms',	121 results.Add('page_load_time', 'ms',

122 int(float(tab.EvaluateJavaScript('__pc_load_time'))),	122 int(float(tab.EvaluateJavaScript('__pc_load_time'))),

123 chart_name='times')	123 chart_name='times')

124	124

125 def DidRunPageSet(self, tab, results):	125 def DidRunTest(self, tab, results):

126 self._memory_metrics.StopAndGetResults(tab.browser, results)	126 self._memory_metrics.StopAndGetResults(tab.browser, results)

127 self.MeasureIO(tab, results)	127 self.MeasureIO(tab, results)

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