Re: Renicing for OpenGL smoothness.

Re: Renicing for OpenGL smoothness.

[Notifications]

> 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.

Well, there's just two processes that I couldn't find information on  
online though, kintegrityd and kworker. I set them to highpri for the  
moment, in my script. However the script didn't seem to make much of a  
difference, so the processes that run on Ubuntu Natty Narwhal seems to be  
quite well behaved. It's just a principle though, that any background  
processes shouldn't be able to request a lot of cpu, while I am running my  
opengl app. I do see that the ubuntu folks have reniced some processes of  
their own though.
[khelper] [kintegrityd] [kblockd] [kacpid] [kacpi_notify] [kacpi_hotplug]  
[ata_sff] and more are all at -20. Seems to be quite the opposite of what  
I am doing...

Renicing for OpenGL smoothness.

[Uwaysi Bin Kareem]

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.