[lkml]   [2009]   [May]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH] Multimedia scheduling class, take 2
On Tue, 2009-05-12 at 13:07 +0300, Jussi Laako wrote:
> Peter Zijlstra wrote:
> > I certainly don't think the current situation is bad enough to warrant
> > things like that, media on my machines works peachy (*cheer* for XV on
> > R600).
> By the way, here's a good test case for a desktop, preferably UP:
> - run something like this in a loop:
> find / -type f -exec grep asd "{}" ";"
> - run x11perf * numcpus in a loop
> - run glxgears * numcpus
> - go to youtube frontpage with a web browser
> - start for example "totem" mediaplayer and play full-HD H.264 movie
> Does the movie playback and audio go smoothly? Can you play youtube HD
> videos smoothly?

I don't know about youtube, that flash thing doesn't seem to deliver
full hd content, and I'm not sure where to click, but playing a full-hd
trailer from the network using vlc seems to work just fine with 4
x11perf and 4 glxgears and that find thing.

There is an occasional stutter, but not much.

Thing is, adding static preemption priories into SCHED_OTHER (which is
basically what you propose I think) doesn't really help, I can still
load the machine high enough so that there simply isn't time available
to decode the frames while maintaining proportional fairness -- no
matter how preemptive you get.

 \ /
  Last update: 2009-05-12 13:21    [W:0.174 / U:1.508 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site