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

Delta	Revision Range	Bot	Test Suite	Test
17131.8%	672018-672033	linux-perf	rendering.desktop	percentage_smooth/many_images
9733.9%	670592-670674	android-nexus5x-perf	blink_perf.canvas	upload-video-to-texture
1343.4%	667721-671011	linux-perf	blink_perf.canvas	draw-static-canvas-2d-to-hw-accelerated-canvas-2d_RAF
1024.4%	667669-671020	android-nexus5x-perf	blink_perf.canvas	draw-static-canvas-2d-to-hw-accelerated-canvas-2d_RAF
658.2%	670636-670727	Android Nexus6 WebView Perf	rendering.mobile	percentage_smooth/microsoft_snow
325.6%	671243-671264	linux-perf	blink_perf.dom	select-single-remove
323.0%	671194-671255	Win 7 Nvidia GPU Perf	blink_perf.dom	select-single-remove
309.9%	671248-671268	mac-10_13_laptop_high_end-perf	blink_perf.dom	select-single-remove
306.8%	671198-671249	mac-10_12_laptop_low_end-perf	blink_perf.dom	select-single-remove
294.5%	671038-671193	Win 7 Nvidia GPU Perf	blink_perf.canvas	draw-hw-accelerated-canvas-2d-to-sw-canvas-2d_RAF

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

Delta	Revision Range	Bot	Test Suite	Test	Bug
zero-to-nonzero	38090221223900901-38090231223901000	cros-peppy	system_health.memory_desktop	console:error:all_avg/load_news/load_news_hackernews_2018	NONE
10280.0%	667724-667959	Android Nexus5 Perf	rendering.mobile	thread_raster_cpu_time_per_frame/text_hover_90000_pixels_per_second	NONE
1858.8%	669965-670039	Win 7 Nvidia GPU Perf	system_health.memory_desktop	memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/load_tools/load_tools_dropbox	977359
406.4%	669566-669596	Android Nexus5 Perf	rendering.mobile	thread_raster_cpu_time_per_frame/ie_chalkboard	NONE
142.6%	670862-670932	win-10-perf	memory.desktop	memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/TrivialScrollingPageSharedPageState	NONE
100.0%	670897-670973	linux-perf	system_health.common_desktop	console:error:all_avg/load_games/load_games_spychase_2018	NONE
98.4%	671054-671164	linux-perf	system_health.common_desktop	cpu_time_percentage_avg/load_tools/load_tools_weather	NONE
97.9%	670862-670932	win-10-perf	memory.desktop	memory:chrome:all_processes:reported_by_chrome:gpu:effective_size_avg/TrivialScrollingPageSharedPageState	NONE
96.0%	669566-669596	Android Nexus5 Perf	rendering.mobile	percentage_smooth/ie_chalkboard	NONE
80.0%	670391-670716	linux-perf	system_health.common_desktop	console:error:all_avg/browse_tools/browse_tools_maps	977364