Em Segunda, 30 de Julho de 2007 22:24, Kenneth Prugh escreveu: > Ingo Molnar wrote: > > * Kenneth Prugh <[EMAIL PROTECTED]> wrote: > >> Ingo Molnar wrote: > >>> <large snip> > >> > >> Hello, I have a gaming rig and would love to help benchmark with my > >> copy of UT2004(E6600 Core2 and a 7950GTO card). Or if you have > >> anything else that would better serve as a benchmark I could grab it > >> and try. > >> > >> The only problem is I don't know what 2 kernels I should be using to > >> test the schedulers. I assume 2.6.23-rc1 for CFS, but what about SD? > > > > .22-ck1 includes it, so that should be fine: > > > > http://ussg.iu.edu/hypermail/linux/kernel/0707.1/0318.html > > > > Ingo > > Alright, Just got done with some testing of UT2004 between 2.6.23-rc1 > CFS and 2.6.22-ck1 SD. This series of tests was run by spawning in a map > while not moving at all and always facing the same direction, while > slowing increasing the number of loops. > > CFS generally seemed a lot smoother as the load increased, while SD > broke down to a highly unstable fps count that fluctuated massively > around the third loop. Seems like I will stick to CFS for gaming now. > > Below you will find the results of my test with the average number of FPS. > > CFS | SD > UT2004 + 0 loops | 200 FPS UT2004 + 0 loops | 190 FPS > UT2004 + 1 loops | 195 FPS UT2004 + 1 loops | 190 FPS > UT2004 + 2 loops | 190 FPS UT2004 + 2 loops | 190 FPS > UT2004 + 3 loops | 189 FPS UT2004 + 3 loops | 136 FPS > UT2004 + 4 loops | 150 FPS UT2004 + 4 loops | 137 FPS > UT2004 + 5 loops | 145 FPS UT2004 + 5 loops | 136 FPS > UT2004 + 6 loops | 145 FPS UT2004 + 6 loops | 105 FPS > UT2004 + 7 loops | 118 FPS UT2004 + 7 loops | 104 FPS > UT2004 + 8 loops | 97 FPS UT2004 + 8 loops | 104 FPS > UT2004 + 9 loops | 94 FPS UT2004 + 9 loops | 89 FPS > UT2004 + 10 loops | 92 FPS UT2004 + 10 loops | 91 FPS
can you apply the patch [1] that changes the behaviour of sched_yield on SD and report the results? SD should scale a lot better after the patch. 1 - http://bhhdoa.org.au/pipermail/ck/2007-July/008297.html -- Com os melhores cumprimentos/Best regards, Miguel Figueiredo http://www.DebianPT.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
