| # Copyright 2018 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 core import perf_benchmark |
| |
| import page_sets |
| from telemetry import benchmark |
| from telemetry import story as story_module |
| from telemetry.timeline import chrome_trace_category_filter |
| from telemetry.web_perf import timeline_based_measurement |
| |
| @benchmark.Info(emails=['chiniforooshan@chromium.org', 'sadrul@chromium.org']) |
| class CrosUiSmoothnessBenchmark(perf_benchmark.PerfBenchmark): |
| """Measures ChromeOS UI smoothness.""" |
| page_set = page_sets.CrosUiCasesPageSet |
| SUPPORTED_PLATFORMS = [story_module.expectations.ALL_CHROMEOS] |
| |
| @classmethod |
| def Name(cls): |
| return 'cros_ui_smoothness' |
| |
| def CreateCoreTimelineBasedMeasurementOptions(self): |
| category_filter = chrome_trace_category_filter.CreateLowOverheadFilter() |
| options = timeline_based_measurement.Options(category_filter) |
| options.config.chrome_trace_config.EnableUMAHistograms( |
| 'Event.Latency.ScrollBegin.Touch.TimeToScrollUpdateSwapBegin4', |
| 'Event.Latency.ScrollUpdate.Touch.TimeToScrollUpdateSwapBegin4') |
| options.SetTimelineBasedMetrics(['renderingMetric', 'umaMetric']) |
| return options |
