Messages in this thread | | | Subject | Re: O(1) scheduler starvation | From | Felipe Alfaro Solana <> | Date | 18 Jun 2003 23:30:43 +0200 |
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On Wed, 2003-06-18 at 17:54, Mike Galbraith wrote: > >To make XMMS skip, just force the X server to do a lot of repainting, > >for example, by dragging a big window slowly enough over another one > >which requires a lot of painting (Evolution, for example, is a good > >candidate as it requires a lot of CPU to repaint uncovered areas). It's > >easy to reproduce just after launching XMMS. However, after a while, it > >gets difficult to make XMMS to skip sound (it seems the scheduler > >adjusts priorities well enough). This is on a PIII 700Mhz laptop with no > >niced processes at all. > > Thanks. I don't have evolution on my linux box (pine/vi/procmail > rules). ImageMagic ought to give X more than enough spurts of frenetic > activity though. Do you have that, and does image manipulation make xmms > stutter as well? Just moving windows around and changing backgrounds > doesn't do anything here. (500mhz piii/128mb ram btw)
In fact, I can only make XMMS skip sound for a very brief period, just after starting it up. After a few seconds, it seems the dynamic priorities are adjusted and I can't make XMMS skip sound anymore. To reproduce it, open up a big window, then launch XMMS and make it play some MP3 file. Then, start moving the big window around. For me, this causes XMMS to skip sound for a brief period of time (~5 seconds, approx).
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