| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| from telemetry import multi_page_benchmark |
| from telemetry import util |
| |
| class DidNotScrollException(multi_page_benchmark.MeasurementFailure): |
| def __init__(self): |
| super(DidNotScrollException, self).__init__('Page did not scroll') |
| |
| def DivideIfPossibleOrZero(numerator, denominator): |
| if denominator == 0: |
| return 0 |
| return numerator / denominator |
| |
| def CalcScrollResults(rendering_stats_deltas, results): |
| num_frames_sent_to_screen = rendering_stats_deltas['numFramesSentToScreen'] |
| |
| mean_frame_time_seconds = ( |
| rendering_stats_deltas['totalTimeInSeconds'] / |
| float(num_frames_sent_to_screen)) |
| |
| dropped_percent = ( |
| rendering_stats_deltas['droppedFrameCount'] / |
| float(num_frames_sent_to_screen)) |
| |
| num_impl_thread_scrolls = rendering_stats_deltas.get( |
| 'numImplThreadScrolls', 0) |
| num_main_thread_scrolls = rendering_stats_deltas.get( |
| 'numMainThreadScrolls', 0) |
| |
| percent_impl_scrolled = DivideIfPossibleOrZero( |
| float(num_impl_thread_scrolls), |
| num_impl_thread_scrolls + num_main_thread_scrolls) |
| |
| num_layers = ( |
| rendering_stats_deltas.get('numLayersDrawn', 0) / |
| float(num_frames_sent_to_screen)) |
| |
| num_missing_tiles = ( |
| rendering_stats_deltas.get('numMissingTiles', 0) / |
| float(num_frames_sent_to_screen)) |
| |
| results.Add('mean_frame_time', 'ms', round(mean_frame_time_seconds * 1000, 3)) |
| results.Add('dropped_percent', '%', round(dropped_percent * 100, 1), |
| data_type='unimportant') |
| results.Add('percent_impl_scrolled', '%', |
| round(percent_impl_scrolled * 100, 1), |
| data_type='unimportant') |
| results.Add('average_num_layers_drawn', '', round(num_layers, 1), |
| data_type='unimportant') |
| results.Add('average_num_missing_tiles', '', round(num_missing_tiles, 1), |
| data_type='unimportant') |
| |
| def CalcPaintingResults(rendering_stats_deltas, results): |
| totalPaintTime = rendering_stats_deltas.get('totalPaintTimeInSeconds', 0) |
| totalRasterizeTime = rendering_stats_deltas.get( |
| 'totalRasterizeTimeInSeconds', 0) |
| totalPixelsPainted = rendering_stats_deltas.get('totalPixelsPainted', 0) |
| totalPixelsRasterized = rendering_stats_deltas.get('totalPixelsRasterized', 0) |
| |
| megapixelsPaintedPerSecond = DivideIfPossibleOrZero( |
| (totalPixelsPainted / 1000000.0), totalPaintTime) |
| |
| megapixelsRasterizedPerSecond = DivideIfPossibleOrZero( |
| (totalPixelsRasterized / 1000000.0), totalRasterizeTime) |
| |
| results.Add('total_paint_time', 'seconds', totalPaintTime) |
| results.Add('total_rasterize_time', 'seconds', totalRasterizeTime, |
| data_type='unimportant') |
| results.Add('total_pixels_painted', '', totalPixelsPainted, |
| data_type='unimportant') |
| results.Add('total_pixels_rasterized', '', totalPixelsRasterized, |
| data_type='unimportant') |
| results.Add('megapixels_painted_per_second', '', megapixelsPaintedPerSecond, |
| data_type='unimportant') |
| results.Add('megapixels_rasterized_per_second', '', |
| megapixelsRasterizedPerSecond, data_type='unimportant') |
| results.Add('total_paint_and_rasterize_time', 'seconds', totalPaintTime + |
| totalRasterizeTime, data_type='unimportant') |
| |
| def CalcTextureUploadResults(rendering_stats_deltas, results): |
| if (('totalCommitCount' not in rendering_stats_deltas) |
| or rendering_stats_deltas['totalCommitCount'] == 0) : |
| averageCommitTimeMs = 0 |
| else : |
| averageCommitTimeMs = ( |
| 1000 * rendering_stats_deltas['totalCommitTimeInSeconds'] / |
| rendering_stats_deltas['totalCommitCount']) |
| |
| results.Add('texture_upload_count', 'count', |
| rendering_stats_deltas.get('textureUploadCount', 0)) |
| results.Add('average_commit_time', 'ms', averageCommitTimeMs, |
| data_type='unimportant') |
| |
| def CalcFirstPaintTimeResults(results, tab): |
| if tab.browser.is_content_shell: |
| results.Add('first_paint', 'ms', 'unsupported') |
| return |
| |
| tab.runtime.Execute(""" |
| window.__rafFired = false; |
| window.webkitRequestAnimationFrame(function() { |
| window.__rafFired = true; |
| }); |
| """) |
| util.WaitFor(lambda: tab.runtime.Evaluate('window.__rafFired'), 60) |
| |
| first_paint_secs = tab.runtime.Evaluate( |
| 'window.chrome.loadTimes().firstPaintTime - ' + |
| 'window.chrome.loadTimes().startLoadTime') |
| |
| results.Add('first_paint', 'ms', round(first_paint_secs * 1000, 1)) |
| |
| def CalcImageDecodingResults(rendering_stats_deltas, results): |
| totalDeferredImageDecodeCount = rendering_stats_deltas.get( |
| 'totalDeferredImageDecodeCount', 0) |
| totalDeferredImageCacheHitCount = rendering_stats_deltas.get( |
| 'totalDeferredImageCacheHitCount', 0) |
| totalImageGatheringCount = rendering_stats_deltas.get( |
| 'totalImageGatheringCount', 0) |
| totalDeferredImageDecodeTimeInSeconds = rendering_stats_deltas.get( |
| 'totalDeferredImageDecodeTimeInSeconds', 0) |
| totalImageGatheringTimeInSeconds = rendering_stats_deltas.get( |
| 'totalImageGatheringTimeInSeconds', 0) |
| |
| averageImageGatheringTime = DivideIfPossibleOrZero( |
| (totalImageGatheringTimeInSeconds * 1000), totalImageGatheringCount) |
| |
| results.Add('total_deferred_image_decode_count', 'count', |
| totalDeferredImageDecodeCount, |
| data_type='unimportant') |
| results.Add('total_image_cache_hit_count', 'count', |
| totalDeferredImageCacheHitCount, |
| data_type='unimportant') |
| results.Add('average_image_gathering_time', 'ms', averageImageGatheringTime, |
| data_type='unimportant') |
| results.Add('total_deferred_image_decoding_time', 'seconds', |
| totalDeferredImageDecodeTimeInSeconds, |
| data_type='unimportant') |
| |
| class SmoothnessBenchmark(multi_page_benchmark.MultiPageBenchmark): |
| def __init__(self): |
| super(SmoothnessBenchmark, self).__init__('scrolling') |
| self.force_enable_threaded_compositing = False |
| self.use_gpu_benchmarking_extension = True |
| |
| def AddCommandLineOptions(self, parser): |
| parser.add_option('--report-all-results', dest='report_all_results', |
| action='store_true', |
| help='Reports all data collected, not just FPS') |
| |
| def CustomizeBrowserOptions(self, options): |
| if self.use_gpu_benchmarking_extension: |
| options.extra_browser_args.append('--enable-gpu-benchmarking') |
| if self.force_enable_threaded_compositing: |
| options.extra_browser_args.append('--enable-threaded-compositing') |
| |
| def CanRunForPage(self, page): |
| return hasattr(page, 'scrolling') |
| |
| def MeasurePage(self, page, tab, results): |
| rendering_stats_deltas = tab.runtime.Evaluate( |
| 'window.__renderingStatsDeltas') |
| |
| if not (rendering_stats_deltas['numFramesSentToScreen'] > 0): |
| raise DidNotScrollException() |
| |
| CalcFirstPaintTimeResults(results, tab) |
| CalcScrollResults(rendering_stats_deltas, results) |
| CalcPaintingResults(rendering_stats_deltas, results) |
| CalcTextureUploadResults(rendering_stats_deltas, results) |
| CalcImageDecodingResults(rendering_stats_deltas, results) |
| |
| if self.options.report_all_results: |
| for k, v in rendering_stats_deltas.iteritems(): |
| results.Add(k, '', v) |
