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Side by Side Diff: tools/perf/measurements/image_decoding.py

Issue 113563004: Add perf tests for starting Chrome with URL (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Fix test descriptions in start_with_url Created 7 years ago
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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 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 from telemetry.page import page_measurement 5 from telemetry.page import page_measurement
6 6
7 7
8 class ImageDecoding(page_measurement.PageMeasurement): 8 class ImageDecoding(page_measurement.PageMeasurement):
9 def CustomizeBrowserOptions(self, options): 9 def CustomizeBrowserOptions(self, options):
10 options.AppendExtraBrowserArgs('--enable-gpu-benchmarking') 10 options.AppendExtraBrowserArgs('--enable-gpu-benchmarking')
11 11
12 def WillNavigateToPage(self, page, tab): 12 def WillNavigateToPage(self, page, tab):
13 tab.ExecuteJavaScript(""" 13 tab.ExecuteJavaScript("""
14 if (window.chrome && 14 if (window.chrome &&
15 chrome.gpuBenchmarking && 15 chrome.gpuBenchmarking &&
16 chrome.gpuBenchmarking.clearImageCache) { 16 chrome.gpuBenchmarking.clearImageCache) {
17 chrome.gpuBenchmarking.clearImageCache(); 17 chrome.gpuBenchmarking.clearImageCache();
18 } 18 }
19 """) 19 """)
20 tab.StartTimelineRecording() 20 tab.StartTimelineRecording()
21 21
22 def NeedsBrowserRestartAfterEachRun(self, browser): 22 def NeedsBrowserRestartBeforeNextPage(self, browser):
23 return not browser.tabs[0].ExecuteJavaScript(""" 23 return not browser.tabs[0].ExecuteJavaScript("""
24 window.chrome && 24 window.chrome &&
25 chrome.gpuBenchmarking && 25 chrome.gpuBenchmarking &&
26 chrome.gpuBenchmarking.clearImageCache; 26 chrome.gpuBenchmarking.clearImageCache;
27 """) 27 """)
28 28
29 def MeasurePage(self, page, tab, results): 29 def MeasurePage(self, page, tab, results):
30 tab.StopTimelineRecording() 30 tab.StopTimelineRecording()
31 def _IsDone(): 31 def _IsDone():
32 return tab.EvaluateJavaScript('isDone') 32 return tab.EvaluateJavaScript('isDone')
(...skipping 11 matching lines...) Expand all
44 decode_image_events = decode_image_events[-min_iterations:] 44 decode_image_events = decode_image_events[-min_iterations:]
45 45
46 durations = [d.duration for d in decode_image_events] 46 durations = [d.duration for d in decode_image_events]
47 if not durations: 47 if not durations:
48 results.Add('ImageDecoding_avg', 'ms', 'unsupported') 48 results.Add('ImageDecoding_avg', 'ms', 'unsupported')
49 return 49 return
50 image_decoding_avg = sum(durations) / len(durations) 50 image_decoding_avg = sum(durations) / len(durations)
51 results.Add('ImageDecoding_avg', 'ms', image_decoding_avg) 51 results.Add('ImageDecoding_avg', 'ms', image_decoding_avg)
52 results.Add('ImageLoading_avg', 'ms', 52 results.Add('ImageLoading_avg', 'ms',
53 tab.EvaluateJavaScript('averageLoadingTimeMs()')) 53 tab.EvaluateJavaScript('averageLoadingTimeMs()'))
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