Re: FVWM: 2.5.9 redrawing still slow

From: Ben Winslow <rain_at_bluecherry.net>
Date: Wed, 03 Mar 2004 15:32:11 -0500

On Tue, 2004-03-02 at 14:55, Elliot Sowadsky wrote:
> 2.5.8 had a problem for me of being slow.
> 2.5.9 shows the same problem.
> 2.5.7 is ok.
> The menu background opens quick but then takes about a second to fill in.
> Even w/ no .fvwm2rc, the default root menu takes a little while to fill in.
> Switching desks is also slower than on 2.5.7

I'm not sure that it's exactly the same problem, but I've had similar
problems on Linux (x86) with large menus. WindowList is the worst,
since there's a lot of data (all the window titles, plus geometries),
but the problem occurs with all menus.

I spent some time trying to figure out where all the time was being
spent, and apparently the X server is to blame in my case... When fvwm
calls XFlush() (I forget where in the source this was, exactly, but I
can try to find it again), a few commands are sent to the server, and
then it hangs for a bit (usually 250-750ms) because the write() blocks.
I gave up at that point.

-- 
Ben Winslow <rain_at_bluecherry.net>



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Received on Wed Mar 03 2004 - 14:34:27 GMT

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