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Issue 854236 link

Starred by 2 users
Status: WontFix
Owner: ----
Closed: Jun 2018
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression
Proj-VR
Proj-XR



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8.7%-8.9% regression in xr.webxr.static at 567570:567603

Project Member Reported by bsheedy@google.com, Jun 19 2018 
Bisect points pretty definitively to https://chromium-review.googlesource.com/1102357. However, looking at the one previous spike, it looks like some other change actually caused the regression briefly, the original CL landed and fixed it, and then the revert caused the regression to show up again. Will bisect the earlier spike to find the real culprit.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jun 19 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=854236

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=38870ad0062b20d170eb61885293c51f5d96665cd96f143c4eb0cb478fe49217


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

pixel_2_xl
pixel_xl

Comment 2 by bsheedy@chromium.org, Jun 19 2018

Components: Internals>VR
Labels: Proj-VR VR-Perf

Comment 3 by bsheedy@chromium.org, Jun 19 2018 

Culprit CL is https://chromium-review.googlesource.com/c/chromium/src/+/1101118. Not sure how this caused a Skia memory usage increase, but it's consistent across all WebXR sites and both devices.

Comment 4 by tiborg@chromium.org, Jun 20 2018

Labels: -Proj-VR FoundIn-69
It has gone down again for some of the tests. We can keep watching it for a bit and see whether the other tests go down, too.

Comment 5 by bsheedy@chromium.org, Jun 25 2018

Status: WontFix (was: Untriaged)
All affected graphs are down to previous levels and are staying there, so closing this.

Comment 6 by btebbs@chromium.org, Jul 4

Components: Internals>XR
►

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