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

Delta	Revision Range	Bot	Test Suite	Test
1083.3%	560078-560148	android-nexus5X	blink_perf.layout	multicol_tall-content-short-columns-realistic
1028.2%	560031-560156	android-webview-nexus6	blink_perf.layout	multicol_tall-content-short-columns-realistic
1016.5%	560087-560156	android-one	blink_perf.layout	multicol_tall-content-short-columns-realistic
1004.7%	560068-560141	android-nexus5	blink_perf.layout	multicol_tall-content-short-columns-realistic
912.7%	559993-560153	win-high-dpi	blink_perf.layout	multicol_tall-content-short-columns-realistic
860.0%	559975-560116	chromium-rel-win10	blink_perf.layout	multicol_tall-content-short-columns-realistic
803.3%	560083-560140	android-webview-nexus5X	blink_perf.layout	multicol_tall-content-short-columns-realistic
749.6%	560012-560101	linux-perf	blink_perf.layout	multicol_tall-content-short-columns-realistic
737.1%	560067-560156	chromium-rel-win7-gpu-nvidia	blink_perf.layout	multicol_tall-content-short-columns-realistic
712.2%	560071-560156	chromium-rel-mac12	blink_perf.layout	multicol_tall-content-short-columns-realistic

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

Delta	Revision Range	Bot	Test Suite	Test	Bug
1601.9%	560257-560311	win-high-dpi	smoothness.tough_animation_cases	frame_times/balls_css_keyframe_animations.html	845943
1210.9%	560257-560311	win-high-dpi	smoothness.tough_animation_cases	frame_times/balls_javascript_css.html	845943
781.3%	560264-560288	linux-perf	smoothness.tough_animation_cases	frame_times/balls_css_keyframe_animations.html	845943
707.9%	559172-559310	chromium-rel-win7-dual	system_health.memory_desktop	memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/multitab_misc/multitab_misc_typical24	845916
700.2%	560261-560323	chromium-rel-win10	smoothness.tough_animation_cases	frame_times/balls_css_keyframe_animations.html	845943
681.8%	560277-560344	chromium-rel-win7-gpu-nvidia	smoothness.tough_animation_cases	frame_times/balls_css_keyframe_animations.html	845943
679.0%	559172-559310	chromium-rel-win7-dual	system_health.memory_desktop	memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/load_media/load_media_9gag	845916
665.1%	560264-560288	linux-perf	smoothness.tough_animation_cases	frame_times/balls_javascript_css.html	845943
663.5%	560277-560344	chromium-rel-win7-gpu-nvidia	smoothness.tough_animation_cases	frame_times/balls_javascript_css.html	845943
642.8%	560261-560323	chromium-rel-win10	smoothness.tough_animation_cases	frame_times/balls_javascript_css.html	845943