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References: <op.vrm3n5yy6426ze@millennium> <4D6CD10E.3050805@ladisch.de>
Subject: Renicing for OpenGL smoothness.
To: linux-kernel@vger.kernel.org
Date: Fri, 04 Mar 2011 04:36:43 +0100
From: Uwaysi Bin Kareem <uwaysi.bin.kareem@paradoxuncreated.com>
Message-id: <op.vrsuzhju6426ze@millennium>
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Hiya. I'm sitting here playing some OpenGL games, and thinking, isn't it  
rude of processes demanding the same amount of cpu, when I am here,  
wanting the smoothest possible OpenGL experience.

So I am renicing. But my knowledge of the kernel is limited. So I was  
thinking, maybe some of you could inform me, which processes are involved  
in getting the graphics on-screen.

I have already started making a renicing script.

---

highpri=-20;
lowpri=19;
for pid in `pgrep ""`; do renice -n $lowpri -p $pid; done #ubuntu runs a  
lot of processes that can be put in the background.
for pid in `pgrep "init"`; do renice -n $highpri -p $pid; done #probably  
good to have high priority?
for pid in `pgrep "kthreadd"`; do renice -n $highpri -p $pid; done #does  
drivers or anything else create kernel threads that are involved in the  
graphics on-screen?
for pid in `pgrep "ksoftirq"`; do renice -n $highpri -p $pid; done #surely  
these are?
for pid in `pgrep "X"`; do renice -n $highpri -p $pid; done
for pid in `pgrep "metacity"`; do renice -n $highpri -p $pid; done
for pid in `pgrep "hd-audio0"`; do renice -n $highpri -p $pid; done

--
Comments and information appreciated.
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