Messages in this thread | | | Date | Mon, 30 Jul 2007 21:01:47 +0200 | From | Ingo Molnar <> | Subject | Re: [ck] Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1) |
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* david@lang.hm <david@lang.hm> wrote:
> > Would you be interested in trying CFS and doing some numers perhaps? > > It requires some work: you have to start up your favorite game in a > > way that gives a reliable framerate number. (many games allow the > > display of FPS in-game) In Quake3 i simply started the game and did > > not move the player - that is something easy to reproduce. > > the one report that I saw said that the FPS numbers were overall the > same, but what the reporter was seeing was that CFS was doing it in > bursts of activity while SD was smoother. [...]
which report is that, precisely? I'm not aware of any such report past CFS v14 or so.
> IIRC Linus responded with thoughts on granularity and the fact that > changing from Hz 1000 to Hz 100 will increase the timeslices in CFS by > 10x (which could be enough to trigger this sort of issue)
ah, you mean Kasper Sandberg's report? That turned out to be based on an older CFS version, not v2.6.23-rc1. Kasper said he'll redo his tests, and if there's still any regression left we'll fix it.
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