Chrome Performance Dashboard

Top 10 improvements in the last 7 days for Chromium Perf Sheriff

Delta Revision Range Bot Test Suite Test
121.4% 341442-341458 chromium-rel-win7-dual blink_perf.canvas getImageData
90.5% 341442-341462 chromium-rel-win7-single blink_perf.canvas getImageData
61.3% 340699-340727 chromium-rel-win7-gpu-ati performance_browser_tests CastV2Performance_gpu_30fps_slow/transmit
54.1% 340699-340727 chromium-rel-win7-gpu-ati performance_browser_tests CastV2Performance_gpu_30fps_fast/transmit
53.0% 340699-340727 chromium-rel-win7-gpu-ati performance_browser_tests CastV2Performance_gpu_30fps/transmit
52.9% 340699-340727 chromium-rel-win7-gpu-nvidia performance_browser_tests CastV2Performance_gpu_30fps_slow/transmit
52.6% 340532-341086 android-nexus6 v8.top_25_smooth v8_gc_total_percentage_idle
50.6% 340699-340727 chromium-rel-win7-gpu-nvidia performance_browser_tests CastV2Performance_gpu_novsync_24fps/capture_duration
49.5% 340478-341084 android-nexus4 v8.top_25_smooth v8_gc_total_percentage_idle
47.0% 341437-341449 chromium-rel-win7-gpu-nvidia blink_perf.canvas getImageData

Top 10 regressions in the last 7 days for Chromium Perf Sheriff

Delta Revision Range Bot Test Suite Test Bug
17735.6% 341351-341436 android-nexus7v2 thread_times.key_idle_power_cases thread_total_all_cpu_time_per_second 516413
16961.4% 341329-341449 android-one thread_times.key_idle_power_cases thread_total_all_cpu_time_per_second 516413
13771.4% 341312-341401 android-nexus9 thread_times.key_idle_power_cases thread_total_all_cpu_time_per_second 516413
2137.4% 341312-341401 android-nexus9 thread_times.key_idle_power_cases tasks_per_second_total_all 516413
1631.2% 341351-341436 android-nexus7v2 thread_times.key_idle_power_cases tasks_per_second_total_all 516413
1329.3% 341329-341449 android-one thread_times.key_idle_power_cases tasks_per_second_total_all 516413
1031.7% 301327-335068 chromium-rel-win7-dual smoothness.tough_canvas_cases mean_input_event_latency 493863
1031.7% 301327-335068 chromium-rel-win7-dual smoothness.tough_canvas_cases input_event_latency_discrepancy 493863
44.6% 340751-340851 chromium-rel-win7-gpu-intel blink_perf.layout multicol_tall-content-short-columns 515203
44.1% 340751-340779 chromium-rel-win7-dual blink_perf.layout multicol_tall-content-short-columns 515203

Bugs in the last 7 days

Bug State Status Author Summary
516436 open Assigned briander...@chromium.org 75.5% improvement in v8.top_25_smooth at 340227:340410
516435 open Assigned briander...@chromium.org 11.9% improvement in smoothness.tough_scrolling_cases at 340285:340350
516432 open Assigned briander...@chromium.org 38.6% improvement in smoothness.top_25_smooth at 338985:340674
516426 open Assigned briander...@chromium.org 3.1%-20.2% regression in performance_browser_tests at 341448:341449
516425 open Assigned briander...@chromium.org 11.2%-15.7% regression in v8.top_25_smooth at 341463:341465
516424 open Assigned briander...@chromium.org 11.2%-15.7% regression in v8.top_25_smooth at 341463:341465
516423 open Assigned briander...@chromium.org 1.5%-3.7% regression in speedometer at 341454:341465
516422 open Assigned briander...@chromium.org 1.5% regression in page_cycler.intl_ja_zh page load time at 341396:341412
516420 open Assigned briander...@chromium.org 17% regression in v8.top_25_smooth at 341462:341462
516419 open Assigned briander...@chromium.org 10.4%-10.5% regression in blink_perf.canvas at 341466:341466
516417 open Assigned briander...@chromium.org 13.6% regression in v8.top_25_smooth at 341466:341466
516415 open Assigned briander...@chromium.org 3.6% regression in performance_browser_tests at 341460:341460
516413 open Assigned briander...@chromium.org 6%-17735.6% regression in thread_times.key_idle_power_cases at 341312:341449
516411 open Assigned briander...@chromium.org 1.7%-4.2% regression in page_cycler.basic_oopif at 341366:341462
516409 open Assigned briander...@chromium.org 2%-6.3% regression in rasterize_and_record_micro.top_25_smooth at 341329:341449
516399 open Assigned briander...@chromium.org 1.3%-9.7% regression in page_cycler.typical_25 load times at 341330:341390
516394 open Assigned briander...@chromium.org 4.7% regression in startup.warm.blank_page at 341165:341214
516392 open Assigned briander...@chromium.org 1.8% regression in page_cycler.basic_oopif at 341135:341189
516391 open Assigned briander...@chromium.org 1.8% regression in page_cycler.basic_oopif at 341135:341189
516388 open Assigned briander...@chromium.org 1.7% regression in smoothness.tough_scrolling_cases mean_pixels_approximated at 341165:341189
516025 open Assigned robert...@google.com 7.6%-7.9% regression in session_restore.warm.typical_25 at 336689:336705
516014 open Assigned briander...@chromium.org 3.4%-4% regression in performance_browser_tests cast/capture at 340695:340720
516012 open Assigned briander...@chromium.org 2.2% regression in page_cycler.intl_hi_ru at 341091:341093
516011 open Assigned briander...@chromium.org 1.2%-1.4% regression in smoothness.tough_canvas_cases frame_times at 341115:341133
516010 open Assigned briander...@chromium.org 1.4% regression in smoothness.gpu_rasterization.polymer at 340294:340383
516007 open Assigned briander...@chromium.org 2.3%-3.3% regression in rasterize_and_record_micro.key_mobile_sites_smooth at 340478:341086
516005 open Assigned briander...@chromium.org 15.8%-26.4% regression in v8.top_25_smooth v8_gc_total at 340227:340410
515997 closed Fixed briander...@chromium.org 7.3%-8.5% regression in indexeddb_perf vm_private_dirty_final_renderer at 341105:341177
515995 open Assigned briander...@chromium.org 30.6% regression in thread_times.key_mobile_sites_smooth at 340230:340246
515994 open Assigned briander...@chromium.org 25.7%-29.5% regression in thread_times.key_silk_cases at 340240:340261
515992 open Assigned briander...@chromium.org 21.7% regression in thread_times.key_silk_cases thread_renderer_main_cpu_time_per_frame at 340143:340202
515990 open Assigned briander...@chromium.org 3.2% regression in smoothness.gpu_rasterization.polymer frame_times at 339043:339135
515980 open Started rohi...@chromium.org M45: battery life regression
515918 open Assigned sulli...@chromium.org 27.4%-33.7% regression in startup.cold.blank_page at 341036:341040
515671 open Assigned minyue@google.com 11.7%-15.7% improvement in webrtc_perf_tests at 9566:9566
515664 open Assigned minyue@google.com 31.4% improvement in webrtc_perf_tests at 9562:9562
515658 open Assigned minyue@google.com 100% improvement in webrtc_perf_tests at 9409:9419
515653 open Assigned minyue@google.com 2.5%-11.7% regression in webrtc_perf_tests at 9639:9639
515649 open Assigned minyue@google.com 8.6% regression in browser_tests at 340260:340262
515635 open Assigned minyue@google.com 1%-23.5% regression in webrtc_perf_tests at 9624:9624
515205 open Assigned mile...@google.com 5% regression in smoothness.tough_filters_cases at 340762:340797
515168 open Assigned mile...@google.com No data received for smoothness.tough_canvas_cases from chromium-rel-mac8 since 338470
515142 open Assigned sulli...@chromium.org 10.5%-27.2% regression in blink_perf.shadow_dom at 333801:333878
515094 open Untriaged simonha...@chromium.org Fix and re-enable rasterize_and_record_micro.key_mobile_sites_smooth on linux.
514846 open Assigned oyste...@google.com 20.6%-22.1% regression in page_cycler.intl_ar_fa_he at 339910:340045
514841 open Assigned oyste...@google.com 4.8% regression in performance_browser_tests at 340545:340593
514835 open Assigned oyste...@google.com 12%-18.9% regression in smoothness.tough_canvas_cases at 340343:340385
514833 open Assigned oyste...@google.com 10.8% regression in scheduler.tough_scheduling_cases at 340580:340616
514714 open Assigned sco...@chromium.org Big frame rate drop in Chrome 44
514713 open Assigned wolen...@chromium.org 2.8% regression in media.tough_video_cases at 338577:338597
514712 open Assigned wolen...@chromium.org 21.5% regression in media.tough_video_cases at 340298:340318
514711 open Assigned wolen...@chromium.org 40.6% regression in media.mse_cases at 338092:338155