Bug 260718 - kmail much slower when using oxygen widget style compared to plastique
Summary: kmail much slower when using oxygen widget style compared to plastique
Status: RESOLVED FIXED
Alias: None
Product: Oxygen
Classification: Plasma
Component: general (show other bugs)
Version: unspecified
Platform: Ubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Hugo Pereira Da Costa
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-12-19 17:00 UTC by m.wege
Modified: 2012-11-20 14:44 UTC (History)
1 user (show)

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Description m.wege 2010-12-19 17:00:20 UTC
Version:           2.0.89 (using KDE 4.5.85) 
OS:                Linux

I just switched kmail from the oxygen widget style to the plastique style, because it was suggested in another bug report to test it. I then noticed something else: The display of messages in a folder is much faster using plastique. I did not measure it, but the difference is huge. In many cases the mails in the folders are displayed instantly or near to instantly while using the oxygenstyle it sometimes takes 10 seconds or more.

Reproducible: Always




OS: Linux (i686) release 2.6.37-7-generic-pae
Compiler: cc
Comment 1 Hugo Pereira Da Costa 2010-12-22 19:17:30 UTC
I'll have to switch to version 2.XX to test and debug.
I'm still using version 1.13.5
Now: the way I understand it, kmail (and whole kdepim suite) is still under heavy development.

I believe there is a conflict (and possible repaint-loop) between webkit, used to render the mail and the email 'sunken' frame (which for some reason gets hidden most of the time in both 1.X and 2.X versions of kmail).

Will keep you posted.

Hugo
Comment 2 Hugo Pereira Da Costa 2012-11-20 14:28:59 UTC
Still valid with more recent KDE and KMain and Oxygen ?
Comment 3 Hugo Pereira Da Costa 2012-11-20 14:30:02 UTC
more precisely: 
Slower than plastique, it will be. (and will always be) due to the complexity of the rendering.
Is it: slower up to the point it is unusable ? 
What is the actual *idle* CPU consumption ?
Comment 4 m.wege 2012-11-20 14:44:34 UTC
Kmail still is generally not very fast, but it works and I assume that there others reasons for that. So the bug can be closed.