New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 827652 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 3
Type: Bug



Sign in to add a comment

Bisect improvement in chromium-rel-mac11-pro/smoothness.desktop_tough_pinch_zoom_cases / mean_frame_time

Project Member Reported by vmi...@chromium.org, Mar 30 2018

Issue description

Creating this to bisect and understand reason for large improvement in Facebook mean_frame_time at r525321.

https://chromeperf.appspot.com/report?sid=a8b83e6b3b31073772b7cb9314e01f2a195f8a5bc7241876365263d5093d57a8&start_rev=523128&end_rev=547147
 

Comment 1 by vmi...@chromium.org, Mar 30 2018

Components: Internals>GPU>Metrics
Project Member

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

Cc: kinuko@chromium.org kbr@chromium.org kouhei@chromium.org nhiroki@chromium.org
Owner: nhiroki@chromium.org
📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/14f0b437440000

Blacklist accelerated 2D canvas and GPU raster on old macOS/Intel. by kbr@chromium.org
https://chromium.googlesource.com/chromium/src/+/0f82ef114f134c9861fe37a2892e6ee9b991f634

Worker: Implement WorkerGlobalScope::ImportModuleScript() by nhiroki@chromium.org
https://chromium.googlesource.com/chromium/src/+/715a1c5f5b3dd2e40219c5457c15e62f4726a503

Revert "Worker: Implement WorkerGlobalScope::ImportModuleScript()" by nhiroki@chromium.org
https://chromium.googlesource.com/chromium/src/+/97725cce21f96a452be83861663af09f5315c45a

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

Comment 4 by vmi...@chromium.org, Mar 30 2018

Status: WontFix (was: Assigned)
I'm relatively sure the bulk of this smoothness improvement came from "Blacklist accelerated 2D canvas and GPU raster on old macOS/Intel" which makes sense.  Closing.

Comment 5 by vmi...@chromium.org, Mar 30 2018

Cc: ericrk@chromium.org
Owner: vmi...@chromium.org
ericrk: fyi.  A lot of our perf bots are running MacOS 10.11, which means we're not measuring Ganesh on them.

Sign in to add a comment