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17.1% regression in blink_perf.events at 532076:532142

Project Member Reported by primiano@chromium.org, Jan 29 2018 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jan 29 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=806848

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=22a17687af8dcb1efeb1160ef36b368163b7e1cee3acea4299b6c70d221bbe6a


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

chromium-rel-win7-gpu-intel
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jan 30 2018

Cc: chrishtr@chromium.org asvitk...@chromium.org trchen@chromium.org r...@opera.com gab@chromium.org futhark@chromium.org
Owner: trchen@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/11bc5e9a840000

Disable hang watching on the UI thread for now.
By gab@chromium.org · Fri Jan 26 23:16:49 2018
chromium @ 505bed3a721218e94c8c5b6d3ee9ebc3507b6b1a

Reland "LayoutView::StyleWillChange viewport invalidation"
By trchen@chromium.org · Fri Jan 26 23:20:42 2018
chromium @ 1937401660f05dc109a53deb96b10b2735d69656

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

Comment 4 by trchen@chromium.org, Jan 30 2018

Mergedinto: 768612
Status: Duplicate (was: Assigned)
I'll revert the reland.

Comment 5 by trchen@chromium.org, Jan 31 2018

Cc: yukishiino@chromium.org thakis@chromium.org kenrb@chromium.org palmer@chromium.org chcunningham@chromium.org dcheng@chromium.org chfremer@chromium.org peria@chromium.org mojahsu@chromium.org liber...@chromium.org yoichio@chromium.org bashi@chromium.org emir...@chromium.org kbr@chromium.org guidou@chromium.org mcasas@chromium.org kinuko@chromium.org sadrul@chromium.org hbos@chromium.org zmo@chromium.org hta@chromium.org piman@chromium.org dgozman@chromium.org xhw...@chromium.org pfeldman@chromium.org tbansal@chromium.org wfh@chromium.org yosin@chromium.org haraken@chromium.org danakj@chromium.org xiaoche...@chromium.org rjkroege@chromium.org ryansturm@chromium.org tkent@chromium.org
 Issue 806849  has been merged into this issue.
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