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Issue 637549 link

Starred by 2 users
Status: Duplicate
Merged: issue 624097
Owner:
l...@chromium.org
Closed: Aug 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug



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When docked to bottom, DevTools is really slow.

Reported by nirna...@gmail.com, Aug 13 2016 
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36

Steps to reproduce the problem:
1. In a rich client application, Set DevTools to be "Dock to right" and Write something in console. 
2. Set developer tools to "Dock to bottom".
3. Write the same thing in the console.

What is the expected behavior?
The console should react in the same speed when docked to bottom and right.

What went wrong?
When docked to bottom, the console is extremely slow. When switching back to right, the console works perfectly. 

Did this work before? Yes In earlier versions of Chrome.

Chrome version: 52.0.2743.116  Channel: stable
OS Version: OS X 10.11.6
Flash Version: Shockwave Flash 22.0 r0

More details here:
http://stackoverflow.com/questions/36913727/google-chrome-developer-tools-works-very-slow

Comment 1 by l...@chromium.org, Aug 15 2016

Owner: l...@chromium.org
Hi nimaori@, thank you for bringing this to our attention.  I'm not able to reproduce this slowdown.  Could you please provide some steps to reproduce what you're seeing?  e.g. an example site to visit, what to paste into the console?

The SO link you provided mentions the Network panel.  We saw a slowdown there recently that was fixed.  If the same is happening in Console, could you check whether it happens on Chrome Canary as well?
https://www.google.com/chrome/browser/canary.html

Comment 2 by nirna...@gmail.com, Aug 15 2016 

Hey,
Run the steps I described in the bug while visiting http://www.nytimes.com/.
Try to type in the console "window.document". You will see that when docked
right it's normal and when docked to bottom it's really slow(it takes more
than 2 seconds for the autocomplete to show).

*The problem is not happening on the Canary version, which is good! *

Comment 3 by l...@chromium.org, Aug 15 2016

Mergedinto: 624097
Status: Duplicate (was: Unconfirmed)
Unfortunately I can't repro the slowdown.  I found another issue that mentions the same "dock-to-bottom only" condition for sluggishness, so I'm marking this as a dupe.

According to that thread, there is a fix for this coming in M53, the next major stable release.  Sorry for the inconvenience of waiting, it looks like this affects a lot of people.

https://bugs.chromium.org/p/chromium/issues/detail?id=624097

Comment 4 by nirna...@gmail.com, Aug 15 2016 

Thanks a lot! That's great.
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