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# Copyright (c) 2012 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.
from telemetry import multi_page_benchmark
from telemetry import util
MEMORY_HISTOGRAMS = [
{'name': 'V8.MemoryExternalFragmentationTotal', 'units': 'percent'},
{'name': 'V8.MemoryHeapSampleTotalCommitted', 'units': 'kb'},
{'name': 'V8.MemoryHeapSampleTotalUsed', 'units': 'kb'}]
class PageCycler(multi_page_benchmark.MultiPageBenchmark):
def CustomizeBrowserOptions(self, options):
options.AppendExtraBrowserArg('--dom-automation')
options.AppendExtraBrowserArg('--js-flags=--expose_gc')
def MeasurePage(self, _, tab, results):
def _IsDone():
return tab.page.GetCookieByName('__pc_done') == '1'
util.WaitFor(_IsDone, 1200, poll_interval=5)
print 'Pages: [%s]' % tab.page.GetCookieByName('__pc_pages')
# TODO(tonyg): Get IO and memory statistics.
for histogram in MEMORY_HISTOGRAMS:
name = histogram['name']
data = tab.runtime.Evaluate(
'window.domAutomationController.getHistogram("%s")' % name)
results.Add(name, histogram['units'], data, data_type='histogram')
def _IsNavigatedToReport():
return tab.page.GetCookieByName('__navigated_to_report') == '1'
util.WaitFor(_IsNavigatedToReport, 60, poll_interval=5)
timings = tab.runtime.Evaluate('__get_timings()').split(',')
results.Add('t', 'ms', [int(t) for t in timings], chart_name='times')
# TODO(tonyg): Add version that runs with extension profile.
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