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

Delta Revision Range Bot Test Suite Test
281.8% 568510-568598 linux-perf smoothness.top_25_smooth percentage_smooth/yahoo_sports
100.0% 565407-565508 android-nexus5X smoothness.tough_scrolling_cases mean_pixels_approximated/text_hover_20000_pixels_per_second
100.0% 565420-566179 android-nexus5 smoothness.tough_scrolling_cases mean_pixels_approximated/text_hover_20000_pixels_per_second
93.4% 568953-569071 android-webview-nexus6 thread_times.simple_mobile_sites thread_IO_cpu_time_per_frame/flickr_scroll
76.7% 568953-569071 android-webview-nexus6 system_health.memory_mobile memory:webview:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/background_news/background_news_nytimes
72.1% 568953-569071 android-webview-nexus6 smoothness.tough_canvas_cases frame_times/microsoft_video_city
65.8% 568953-569071 android-webview-nexus6 thread_times.simple_mobile_sites thread_other_cpu_time_per_frame/flickr_scroll
65.5% 562467-568711 android-one memory.top_10_mobile memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/foreground/http_www_amazon_com_gp_aw_s_k_nexus
62.2% 568953-569071 android-webview-nexus6 thread_times.simple_mobile_sites thread_total_all_cpu_time_per_frame/flickr_scroll
61.7% 568953-569071 android-webview-nexus6 thread_times.simple_mobile_sites thread_browser_cpu_time_per_frame/flickr_scroll

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

Delta Revision Range Bot Test Suite Test Bug
zero-to-nonzero 1521790214-1529078898 health-plan-webview-phone system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_social/background_social_facebook NONE
204800.0% 568608-568703 android-nexus5 system_health.memory_mobile memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/background_search/background_search_google NONE
204800.0% 1529470636-1529482382 health-plan-clankium-phone system_health.memory_mobile memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/background_media/background_media_imgur NONE
204800.0% 1529470636-1529482382 health-plan-clankium-phone system_health.memory_mobile memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/background_search/background_search_google NONE
102400.0% 568534-568615 android-webview-nexus6 system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_media/background_media_imgur NONE
102400.0% 568534-568615 android-webview-nexus6 system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_search/background_search_google NONE
102400.0% 568538-568621 android-webview-nexus5X system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_search/background_search_google NONE
102400.0% 568538-568621 android-webview-nexus5X system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_media/background_media_imgur NONE
102400.0% 1529499853-1529509462 health-plan-webview-phone system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_search/background_search_google NONE
102400.0% 1529463543-1529472549 health-plan-webview-phone system_health.memory_mobile memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background_media/background_media_imgur NONE