Bug 364283 - Krita heavily freezes and lags on any action making it unsable
Summary: Krita heavily freezes and lags on any action making it unsable
Status: RESOLVED DUPLICATE of bug 364406
Alias: None
Product: krita
Classification: Applications
Component: General (show other bugs)
Version: 3.0
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-06-13 22:07 UTC by Storm Engineer
Modified: 2016-06-18 21:05 UTC (History)
2 users (show)

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Latest Commit:
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Description Storm Engineer 2016-06-13 22:07:16 UTC 
Bug appears on 3.0 branch with commit 2dd26c5 - Histogram Improvements

From that commit the following symptoms appear:
 - Krita is extremely slow in general
 - Any action, including making brush strokes, undoing or using any tool will cause Krita to freeze for 5-8 seconds. Random alg and freezing happens too.
 - Krita won't free up used memory on closing the open file, only upon exiting Krita.

System:
Arch Linux + KDE
Intel Core i7-2600
GeForce GTX 750 Ti
16 GB DDR3 1333 MHz

Reproducible: Always
Comment 1 Storm Engineer 2016-06-18 03:25:56 UTC 
Built fresh now. The freezing is still there after every brush stroke or other action.
Comment 2 Quiralta 2016-06-18 04:31:19 UTC 
Could it be the same as the one I reported? I have the information here https://bugs.kde.org/show_bug.cgi?id=364406
Comment 3 Halla Rempt 2016-06-18 08:23:39 UTC 
Yes, this is caused by the historgram docker taking cpu even when it's hidden. It should use some kind of timer or event compression to minimize cpu usage & not do anything when it's hidden.
Comment 4 Storm Engineer 2016-06-18 21:05:10 UTC 
(In reply to Quiralta from comment #2)
> Could it be the same as the one I reported? I have the information here
> https://bugs.kde.org/show_bug.cgi?id=364406

Yes, seems to be the same! I also get the pressure and position locking resulting in connecting two points, just like as you described. I assume this ticket can be marked a duplicate then.
Comment 5 Storm Engineer 2016-06-18 21:05:43 UTC 

*** This bug has been marked as a duplicate of bug 364406 ***