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Issue 839569 link

Starred by 1 user
Status: WontFix
Owner:
khushals...@chromium.org
Closed: May 2018
Cc:
█ junov@chromium.org
tdres...@chromium.org
ccameron@chromium.org
khushals...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.6% regression in smoothness.tough_filters_cases at 555271:555325

Project Member Reported by tdres...@chromium.org, May 3 2018 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, May 3 2018 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=839569

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0ef0ea7fc1a758bfa164869c4e85be7c10c03056f16934702a053fd3066db7d8


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

chromium-rel-mac11-pro
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 3 2018

Cc: khushals...@chromium.org junov@chromium.org ccameron@chromium.org
Owner: khushals...@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/14d65da3c40000

blink: Set up a cc::SoftwareImageDecodeCache for canvas image decodes. by khushalsagar@chromium.org
https://chromium.googlesource.com/chromium/src/+/49fc8a9c4a9eb46faa2258daea5bdbee48da7dcb

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

Comment 4 by khushals...@chromium.org, May 3 2018

Status: WontFix (was: Assigned)
There is a minor regression, average main frame time went from 8.1 to 8.5ms, only on 1 test case (IE_PirateMark) and only on mac11 pro. The page requests a few images at low quality, which are now filtered at medium, so a minor regression is expected.
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