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Issue 613702 link

Starred by 1 user
Status: WontFix
Owner:
vmi...@chromium.org
Closed: May 2017
Cc:
█ bsalomon@chromium.org
vmp...@chromium.org
ericrk@chromium.org
EstimatedDays: ----
NextAction: ----
OS: Android
Pri: 2
Type: Bug-Regression



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Animometer - Leaves test with Ganesh regressed between Chrome 51 & 52

Project Member Reported by vmi...@chromium.org, May 20 2016 
While running tests with Ganesh on Pixel C I noticed that the score on Animometer Leaves test is 20% worse on Chrome Dev and Chrome Beta.

Chrome Beta (51.0.2704.36) - Score ~150
Chrome Dev (52.0.2739.3) - Score ~125

Looking at the traces it looks like raster task durations increased from ~3.3ms to ~4.8ms average.

My initial thought is that this could be image controller overhead.
trace_beta.json.zip
901 KB Download
trace_dev.json.zip
1.0 MB Download

Comment 1 by vmi...@chromium.org, May 20 2016

Owner: vmi...@chromium.org
Status: Assigned (was: Available)
FWIW my local build on ToT scores ~166.  I'll run some bisects.

Comment 2 by esprehn@chromium.org, Jun 2 2016 

Did we figure this out?

Comment 3 by vmi...@chromium.org, May 10 2017

Status: WontFix (was: Assigned)
This was confirmed to be image controller overhead, as the test is very image heavy.  We've optimized part of the overhead, but I don't think we'll be changing this soon, as the image controller is doing good things.
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