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

Delta Revision Range Bot Test Suite Test
358.9% 514751-514799 android-webview-nexus5X blink_perf.canvas upload-video-to-texture
78.2% 516489-516550 android-webview-nexus5X rasterize_and_record_micro.top_25 rasterize_time/file___static_top_25_yahoogames.html
58.5% 517118-517202 chromium-rel-mac11 loading.desktop timeToFirstMeaningfulPaint_avg/warm/TheVerge
54.7% 515952-515999 android-webview-nexus5X thread_times.tough_scrolling_cases thread_raster_cpu_time_per_frame/text_hover_60000_pixels_per_second
54.5% 515130-515171 chromium-rel-win10 loading.desktop timeToFirstMeaningfulPaint_avg/warm/Leboncoin
54.4% 515952-515999 android-webview-nexus5X thread_times.tough_scrolling_cases thread_raster_cpu_time_per_frame/text_hover_50000_pixels_per_second
51.7% 515933-515977 android-nexus6 thread_times.tough_scrolling_cases thread_raster_cpu_time_per_frame/text_hover_05000_pixels_per_second
51.2% 514967-515160 android-nexus5X system_health.memory_mobile memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/browse_news/browse_news_cnn
48.6% 515933-515977 android-nexus6 thread_times.tough_scrolling_cases thread_raster_cpu_time_per_frame/text_hover_10000_pixels_per_second
44.8% 516489-516550 android-webview-nexus5X rasterize_and_record_micro.top_25 record_time/file___static_top_25_yahooanswers.html

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

Delta Revision Range Bot Test Suite Test Bug
zero-to-nonzero 515961-516025 android-nexus5X smoothness.tough_scrolling_cases mean_pixels_approximated/text_hover_30000_pixels_per_second 785572
3612.6% 517159-517228 chromium-rel-mac12 memory.desktop memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/TrivialGifPageSharedPageState 787182
1882.8% 515659-515779 android-nexus6 loading.mobile timeToFirstContentfulPaint_avg/Regular-3G/Wikipedia 784352
1882.7% 515659-515779 android-nexus6 loading.mobile timeToFirstMeaningfulPaint_avg/Regular-3G/Wikipedia 784352
1690.5% 517140-517225 android-nexus5X loading.mobile cpuTimeToFirstMeaningfulPaint_avg/warm_Regular-3G/FlipKart 787171
1641.8% 517251-517335 android-nexus6 smoothness.sync_scroll.key_mobile_sites_smooth first_gesture_scroll_update_latency/http___www.cnn.com 787186
1581.8% 517140-517225 android-nexus5X loading.mobile timeToFirstMeaningfulPaint_avg/hot_Regular-3G/FlipKart 787171
1433.3% 517140-517225 android-nexus5X loading.mobile cpuTimeToFirstMeaningfulPaint_avg/hot_Regular-3G/FlipKart 787171
1406.9% 517140-517225 android-nexus5X loading.mobile timeToFirstMeaningfulPaint_avg/warm_Regular-3G/FlipKart 787171
1363.4% 517183-517288 chromium-rel-win7-dual loading.desktop timeToFirstContentfulPaint_avg/warm/yahoo.co.jp 787171