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Issue 822865 link

Starred by 1 user
Status: WontFix
Owner:
wangxianzhu@chromium.org
Closed: May 2018
Cc:
wangxianzhu@chromium.org
piman@chromium.org
majidvp@chromium.org
chrishtr@chromium.org
vmp...@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression

Blocking:
issue 803867



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4.5%-156.3% regression in smoothness.key_silk_cases at 543264:543342

Project Member Reported by majidvp@google.com, Mar 16 2018 
Most likely a duplicate of  issue 822812
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Mar 16 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=822865

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1d6443a6aefd410677f5daa3fb6c68ee67e1c5bdcf0bb8ccdfc9a6f6b0148e8c


Bot(s) for this bug's original alert(s):

android-nexus5
android-nexus5X
android-nexus6
android-webview-nexus5X
android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 16 2018

Cc: chrishtr@chromium.org wangxianzhu@chromium.org piman@chromium.org
Owner: wangxianzhu@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/16550c61440000

Reland "[SPv175] Enable SlimmingPaintV175 by default" by wangxianzhu@chromium.org
https://chromium.googlesource.com/chromium/src/+/3a3c78a924a686ed0d3f90d765b00cdd78453e11

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

Comment 4 by wangxianzhu@chromium.org, Mar 16 2018

Blocking: 803867
Components: Blink>Paint

Comment 5 by wangxianzhu@chromium.org, May 2 2018

Labels: SPv175-Progression
Status: WontFix (was: Assigned)
Actually this is a progression.

https://pinpoint-dot-chromeperf.appspot.com/job/16890e6ec40000

At r543291, we don't invalidate and update layers during a period of animation (4.8s - 5.2s), and the benchmark measures a big frame time (400ms) which increases the average frame time.
►

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