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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 import multi_page_benchmark | 5 from telemetry import multi_page_benchmark |
6 | 6 |
7 | 7 |
8 class ImageDecoding(multi_page_benchmark.MultiPageBenchmark): | 8 class ImageDecoding(multi_page_benchmark.MultiPageBenchmark): |
9 def WillNavigateToPage(self, page, tab): | 9 def WillNavigateToPage(self, page, tab): |
10 tab.StartTimelineRecording() | 10 tab.StartTimelineRecording() |
tonyg
2013/01/31 23:20:07
Should probably comment out this whole method too.
qinmin
2013/01/31 23:50:55
Done.
| |
11 | 11 |
12 def MeasurePage(self, page, tab, results): | 12 def MeasurePage(self, page, tab, results): |
13 tab.StopTimelineRecording() | 13 # TODO(qinmin): This android only test may fail after we switch to |
14 def _IsDone(): | 14 # deferred image decoding and impl-side painting. Before we fix the test, |
15 return tab.EvaluateJavaScript('isDone') | 15 # temporarily disable calculation for lazily decoded images. |
16 # Uncommented the following lines after we fix the timeline for lazily | |
17 # decoded images. | |
18 return | |
19 # tab.StopTimelineRecording() | |
20 # def _IsDone(): | |
21 # return tab.EvaluateJavaScript('isDone') | |
16 | 22 |
17 decode_image_events = \ | 23 # decode_image_events = \ |
18 tab.timeline_model.GetAllOfName('DecodeImage') | 24 # tab.timeline_model.GetAllOfName('DecodeImage') |
19 | 25 |
20 # If it is a real image benchmark, then store only the last-minIterations | 26 # If it is a real image benchmark, then store only the last-minIterations |
21 # decode tasks. | 27 # decode tasks. |
22 if (hasattr(page, | 28 # if (hasattr(page, |
23 'image_decoding_benchmark_limit_results_to_min_iterations') and | 29 # 'image_decoding_benchmark_limit_results_to_min_iterations') and |
24 page.image_decoding_benchmark_limit_results_to_min_iterations): | 30 # page.image_decoding_benchmark_limit_results_to_min_iterations): |
25 assert _IsDone() | 31 # assert _IsDone() |
26 min_iterations = tab.EvaluateJavaScript('minIterations') | 32 # min_iterations = tab.EvaluateJavaScript('minIterations') |
27 decode_image_events = decode_image_events[-min_iterations:] | 33 # decode_image_events = decode_image_events[-min_iterations:] |
28 | 34 |
29 durations = [d.duration_ms for d in decode_image_events] | 35 # durations = [d.duration_ms for d in decode_image_events] |
30 if not durations: | 36 # if not durations: |
31 results.Add('ImageDecoding_avg', 'ms', 'unsupported') | 37 # results.Add('ImageDecoding_avg', 'ms', 'unsupported') |
32 return | 38 # return |
33 image_decoding_avg = sum(durations) / len(durations) | 39 # image_decoding_avg = sum(durations) / len(durations) |
34 results.Add('ImageDecoding_avg', 'ms', image_decoding_avg) | 40 # results.Add('ImageDecoding_avg', 'ms', image_decoding_avg) |
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