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List: kde-panel-devel
Subject: Re: [Panel-devel] Caching support integrated into 4.4
From: Andreas Aardal Hanssen <ahanssen () trolltech ! com>
Date: 2007-09-07 19:45:20
Message-ID: 200709072145.20092 () shusaku
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On Friday 07 September 2007 17:22, Aaron J. Seigo wrote:
> On Friday 07 September 2007, Andreas Aardal Hanssen wrote:
> > An option might be also to provide a patch for qt-copy for KDE 4.0, the
> > change can be backported very painlessly (although of course it can't go
> > into Qt 4.3 upstream).
>
> if such a patch were made available, i'd be happy to test it here against
> 4.3 and then get it into qt-copy ...
It's in the snapshots that'll be released in 2 hours or so, but in the mean
time here's a patch that applies cleanly to 4.3; this patch follows standard
open source Qt licensing so feel free to use it as you like :-).
I've done measurements of my own - compiled up kde4 with Qt 4.4 (didn't work
right away because of build error in Qt/XML). Moving analogclock around
without caching on my machine uses 40% CPU. With caching there's no visual
impact, but CPU usage drops to 2-4% :-))). Of course, the clock doesn't
change ;-). Right now it needs to call invalidate() but I think I'll make
update() work like it should instead. :-)
--
Andreas Aardal Hanssen / bibr
["qt-x11-opensource-src-4.3.1-cache.patch.bz2" (application/x-bzip2)]
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