tools/perf/perf_tools/memory_benchmark.py

   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
   3 # found in the LICENSE file.
   4 from perf_tools import histogram_measurement
   5 from telemetry.page import page_benchmark
   6
   7 MEMORY_HISTOGRAMS = [
   8     {'name': 'V8.MemoryExternalFragmentationTotal', 'units': 'percent'},
   9     {'name': 'V8.MemoryHeapSampleTotalCommitted', 'units': 'kb'},
  10     {'name': 'V8.MemoryHeapSampleTotalUsed', 'units': 'kb'},
  11     {'name': 'Memory.RendererUsed', 'units': 'kb'}]
  12
  13 BROWSER_MEMORY_HISTOGRAMS =  [
  14     {'name': 'Memory.BrowserUsed', 'units': 'kb'}]
  15
  16 class MemoryBenchmark(page_benchmark.PageBenchmark):
  17   def __init__(self):
  18     super(MemoryBenchmark, self).__init__('stress_memory')
  19     self.histograms = (
  20         [histogram_measurement.HistogramMeasurement(
  21             h, histogram_measurement.RENDERER_HISTOGRAM)
  22          for h in MEMORY_HISTOGRAMS] +
  23         [histogram_measurement.HistogramMeasurement(
  24             h, histogram_measurement.BROWSER_HISTOGRAM)
  25          for h in BROWSER_MEMORY_HISTOGRAMS])
  26
  27   def DidNavigateToPage(self, page, tab):
  28     for h in self.histograms:
  29       h.Start(page, tab)
  30
  31   def CustomizeBrowserOptions(self, options):
  32     options.AppendExtraBrowserArg('--dom-automation')
  33     # For a hard-coded set of Google pages (such as GMail), we produce custom
  34     # memory histograms (V8.Something_gmail) instead of the generic histograms
  35     # (V8.Something), if we detect that a renderer is only rendering this page
  36     # and no other pages. For this test, we need to disable histogram
  37     # customizing, so that we get the same generic histograms produced for all
  38     # pages.
  39     options.AppendExtraBrowserArg('--disable-histogram-customizer')
  40     options.AppendExtraBrowserArg('--memory-metrics')
  41     options.AppendExtraBrowserArg('--reduce-security-for-dom-automation-tests')
  42
  43   def CanRunForPage(self, page):
  44     return hasattr(page, 'stress_memory')
  45
  46   def MeasurePage(self, page, tab, results):
  47     for h in self.histograms:
  48       h.GetValue(page, tab, results)