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Issue 612971 link

Starred by 1 user
Status: WontFix
Owner: ----
Closed: Jul 2016
Cc:
█ mummare...@chromium.org
█ msrchandra@chromium.org
bokan@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Compat



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very low performance with large image

Reported by pierbove...@gmail.com, May 18 2016 
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2738.0 Safari/537.36

Example URL:
https://i.imgur.com/T4FU4yI.jpg

Steps to reproduce the problem:
1. Go to URL https://i.imgur.com/T4FU4yI.jpg
2. Click on the image to get full size view
3. Scroll

What is the expected behavior?
Smooth scrolling

What went wrong?
Heavy stuttering when scrolling, very very slow rendering of the tiles of the image.

Watch this video to see the difference with other browsers.

https://www.youtube.com/watch?v=I_jPatd_CgA

In the video the performance was a bit worse because of the screen recording but the difference between Canary and public Chrome or Safari is quite significant.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? Yes Chrome public channel  50.0.2661.102

Does this work in other browsers? Yes 

Chrome version: 52.0.2738.0  Channel: canary
OS Version: OS X 10.11.5
Flash Version: Shockwave Flash 22.0 r0

Comment 1 by msrchandra@chromium.org, May 19 2016

Cc: msrchandra@chromium.org
Labels: Needs-Feedback
Verified the issue on Latest Canary# 52.0.2741.0 on Mac OS X 10.11.4 and could not reproduce the issue.
Able to scroll without any rendering problems.
@pierbover11 -- Could you please check one more time and update the issue and if possible could you also provide us the screen cast of the issue.
Thanks in Advance.

Comment 2 by pierbove...@gmail.com, May 19 2016 

There is a link with a screencast in my bug report.

But here it is again: https://www.youtube.com/watch?v=I_jPatd_CgA

I'm on Macbook pro without a dedicated GPU.

Comment 3 by mummare...@chromium.org, May 19 2016

Cc: mummare...@chromium.org
Labels: -Needs-Feedback Needs-triage M-52
Status: Untriaged (was: Unconfirmed)
Thanks for the update.

I am able to repro on latest canary# 52.0.2741.0 on Mac OS X 14.0 [slow rendering of the tiles of the image].
Unable to repro on 51.0.2704.47 beta on Mac OS X 14.0 [Smooth scrolling].
Project Member

Comment 4 by sheriffbot@chromium.org, Jun 1 2016

Labels: -M-52 M-53 MovedFrom-52
Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Project Member

Comment 5 by sheriffbot@chromium.org, Jul 9 2016

Labels: -M-53 MovedFrom-53
This issue has been moved once and is lower than Pri-1. Removing the milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 6 by cbiesin...@chromium.org, Jul 20 2016

Components: Blink>Scroll

Comment 7 by bokan@chromium.org, Jul 21 2016

Cc: bokan@chromium.org
Labels: Needs-Feedback
I tried this with (now stable) M52.0.2743.82 on a Mac Pro, admittedly a beastly machine, but it seems to be buttery smooth. Could someone who saw this issue previously give it another try and report back?

Comment 8 by bokan@chromium.org, Jul 21 2016 

Oh, and if it is still occurring, a perf trace would be very helpful: https://www.chromium.org/developers/how-tos/submitting-a-performance-bug

Comment 9 by pierbove...@gmail.com, Jul 21 2016 

I'm on 54.0.2803.0 canary (64-bit) and it works great on my rMBP with an integrated GPU.

I'd say this can be closed.

Comment 10 by bokan@chromium.org, Jul 21 2016

Status: WontFix (was: Untriaged)
Great, thanks for confirming!

Comment 11 by bokan@chromium.org, Jul 21 2016

Labels: -Needs-Feedback
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