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Issue 813875 link

Starred by 3 users

Issue metadata

Status: Duplicate
Owner:
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 1
Type: Bug



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Large regression on smoothness.key_mobile_sites_smooth.mean_pixels_checkerboarded at 537107:537191

Project Member Reported by ajuma@chromium.org, Feb 20 2018

Issue description

The regression ranges from ~300% to ~2000% on Nexus 5, 5X and 6. Triggering bisects
 
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Feb 21 2018

Cc: chrishtr@chromium.org skobes@chromium.org
Owner: chrishtr@chromium.org
Status: Assigned (was: Available)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/12fd3287840000

[RLS] Skip compositing input step if a scroll can be applied directly. by chrishtr@chromium.org
https://chromium.googlesource.com/chromium/src/+/32419f4422bf130d9c52331a0c7dafba9337cc99

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Feb 21 2018

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14f569c7840000

[RLS] Skip compositing input step if a scroll can be applied directly. by chrishtr@chromium.org
https://chromium.googlesource.com/chromium/src/+/32419f4422bf130d9c52331a0c7dafba9337cc99

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions
The patch was reverted in
https://chromium-review.googlesource.com/c/chromium/src/+/928861

Leaving the bug open to verify that perf recovers, in case the wrong patch was pinpointed.

Comment 8 by skobes@chromium.org, Feb 21 2018

Blocking: 770343
The graphs have recovered after the revert.
Cc: alexclarke@chromium.org
 Issue 814207  has been merged into this issue.
 Issue 814255  has been merged into this issue.
Blocking: -770343
Issue 813884 has been merged into this issue.
Mergedinto: 814615
Status: Duplicate (was: Assigned)

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