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Issue 797050 link

Starred by 1 user
Status: WontFix
Owner:
█ kbr@chromium.org
OOO until 2019-01-24
Closed: Dec 2017
Cc:
█ kbr@chromium.org
kinuko@chromium.org
kouhei@chromium.org
nhiroki@chromium.org
█ briander...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression

Blocked on:
issue 794819


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11.2%-1800.4% regression in smoothness.tough_canvas_cases at 525201:525277

Project Member Reported by briander...@chromium.org, Dec 21 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 21 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=797050

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=bb1151f7fee18f2728f20d05ab7f5decfd3ea958ff0598073c3a5a738e839404


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

chromium-rel-mac-retina
chromium-rel-mac11-air
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 22 2017

Cc: kinuko@chromium.org kbr@chromium.org nhiroki@chromium.org kouhei@chromium.org
Owner: nhiroki@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/12f891e1040000

Blacklist accelerated 2D canvas and GPU raster on old macOS/Intel.
By kbr@chromium.org · Wed Dec 20 04:59:09 2017
chromium @ 0f82ef114f134c9861fe37a2892e6ee9b991f634

Worker: Implement WorkerGlobalScope::ImportModuleScript()
By nhiroki@chromium.org · Wed Dec 20 05:11:59 2017
chromium @ 715a1c5f5b3dd2e40219c5457c15e62f4726a503

Revert "Worker: Implement WorkerGlobalScope::ImportModuleScript()"
By nhiroki@chromium.org · Wed Dec 20 05:36:21 2017
chromium @ 97725cce21f96a452be83861663af09f5315c45a

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

Comment 4 by nhiroki@chromium.org, Dec 22 2017

Owner: kbr@chromium.org
kbr@: Could you take a look at this?

My change was merged and reverted in this range.

Comment 5 by kbr@chromium.org, Dec 22 2017

Blockedon: 794819
Status: WontFix (was: Assigned)
This is expected due to the needed fix for  Issue 794819 .

We should be testing on current operating system versions, not obsolete ones.
►

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