tools/perf/measurements/memory.py

   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
   3 # found in the LICENSE file.
   4
   5 from telemetry.page import page_test
   6
   7 from metrics import memory
   8 from metrics import power
   9
  10
  11 class Memory(page_test.PageTest):
  12   def __init__(self):
  13     super(Memory, self).__init__()
  14     self._memory_metric = None
  15     self._power_metric = None
  16
  17   def WillStartBrowser(self, platform):
  18     self._power_metric = power.PowerMetric(platform)
  19
  20   def DidStartBrowser(self, browser):
  21     self._memory_metric = memory.MemoryMetric(browser)
  22
  23   def WillNavigateToPage(self, page, tab):
  24     tab.CollectGarbage()
  25
  26   def DidNavigateToPage(self, page, tab):
  27     self._memory_metric.Start(page, tab)
  28     self._power_metric.Start(page, tab)
  29
  30   def CustomizeBrowserOptions(self, options):
  31     memory.MemoryMetric.CustomizeBrowserOptions(options)
  32     # Since this is a memory benchmark, we want to sample memory histograms at
  33     # a high frequency.
  34     options.AppendExtraBrowserArgs('--memory-metrics')
  35
  36   def ValidateAndMeasurePage(self, page, tab, results):
  37     self._power_metric.Stop(page, tab)
  38     self._memory_metric.Stop(page, tab)
  39     self._memory_metric.AddResults(tab, results)
  40     self._power_metric.AddResults(tab, results)