81 lines
2.9 KiB
Python
81 lines
2.9 KiB
Python
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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from metrics import histogram
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from metrics import memory
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from telemetry.page import page_measurement
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MEMORY_HISTOGRAMS = [
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{'name': 'V8.MemoryExternalFragmentationTotal', 'units': 'percent'},
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{'name': 'V8.MemoryHeapSampleTotalCommitted', 'units': 'kb'},
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{'name': 'V8.MemoryHeapSampleTotalUsed', 'units': 'kb'},
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{'name': 'Memory.RendererUsed', 'units': 'kb'}]
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BROWSER_MEMORY_HISTOGRAMS = [
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{'name': 'Memory.BrowserUsed', 'units': 'kb'}]
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class Memory(page_measurement.PageMeasurement):
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def __init__(self):
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super(Memory, self).__init__('stress_memory')
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self.histograms = (
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[histogram.HistogramMetric(
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h, histogram.RENDERER_HISTOGRAM)
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for h in MEMORY_HISTOGRAMS] +
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[histogram.HistogramMetric(
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h, histogram.BROWSER_HISTOGRAM)
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for h in BROWSER_MEMORY_HISTOGRAMS])
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self._memory_metric = None
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def DidStartBrowser(self, browser):
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self._memory_metric = memory.MemoryMetric(browser)
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self._memory_metric.Start()
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def DidNavigateToPage(self, page, tab):
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for h in self.histograms:
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h.Start(page, tab)
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def CustomizeBrowserOptions(self, options):
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options.AppendExtraBrowserArg('--enable-stats-collection-bindings')
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options.AppendExtraBrowserArg('--enable-memory-benchmarking')
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# For a hard-coded set of Google pages (such as GMail), we produce custom
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# memory histograms (V8.Something_gmail) instead of the generic histograms
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# (V8.Something), if we detect that a renderer is only rendering this page
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# and no other pages. For this test, we need to disable histogram
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# customizing, so that we get the same generic histograms produced for all
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# pages.
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options.AppendExtraBrowserArg('--disable-histogram-customizer')
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options.AppendExtraBrowserArg('--memory-metrics')
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# Old commandline flags used for reference builds.
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options.AppendExtraBrowserArg('--dom-automation')
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options.AppendExtraBrowserArg(
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'--reduce-security-for-dom-automation-tests')
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def CanRunForPage(self, page):
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return hasattr(page, 'stress_memory')
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def MeasurePage(self, page, tab, results):
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for h in self.histograms:
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h.GetValue(page, tab, results)
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if tab.browser.is_profiler_active('tcmalloc-heap'):
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# The tcmalloc_heap_profiler dumps files at regular
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# intervals (~20 secs).
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# This is a minor optimization to ensure it'll dump the last file when
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# the test completes.
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tab.ExecuteJavaScript("""
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if (chrome && chrome.memoryBenchmarking) {
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chrome.memoryBenchmarking.heapProfilerDump('final', 'renderer');
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chrome.memoryBenchmarking.heapProfilerDump('final', 'browser');
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}
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""")
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def DidRunTest(self, tab, results):
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self._memory_metric.Stop()
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self._memory_metric.AddResults(tab, results)
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