tools/perf/measurements/page_cycler.py - Issue 319813004: [Telemetry] Update copyright header style.

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Issue 319813004: [Telemetry] Update copyright header style. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: remove stray change Created 6 years, 6 months ago

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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.	1 # Copyright 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

11 collections are performed in between the page loads (in the beforeunload event).	11 collections are performed in between the page loads (in the beforeunload event).

(...skipping 149 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
161 # preserve any initial profile cache for as long as possible.	161 # preserve any initial profile cache for as long as possible.

162 # The second is that, if we did cold runs first, we'd have a transition	162 # The second is that, if we did cold runs first, we'd have a transition

163 # page set during which we wanted the run for each URL to both	163 # page set during which we wanted the run for each URL to both

164 # contribute to the cold data and warm the catch for the following	164 # contribute to the cold data and warm the catch for the following

165 # warm run, and clearing the cache before the load of the following	165 # warm run, and clearing the cache before the load of the following

166 # URL would eliminate the intended warmup for the previous URL.	166 # URL would eliminate the intended warmup for the previous URL.

167 return (self._has_loaded_page[url] >= self._cold_run_start_index)	167 return (self._has_loaded_page[url] >= self._cold_run_start_index)

168	168

169 def results_are_the_same_on_every_page(self):	169 def results_are_the_same_on_every_page(self):

170 return False	170 return False

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