Messages in this thread | | | Subject | Re: x264 benchmarks BFS vs CFS | From | Kasper Sandberg <> | Date | Fri, 18 Dec 2009 11:57:36 +0100 |
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On Fri, 2009-12-18 at 08:30 +0100, Mike Galbraith wrote: > On Fri, 2009-12-18 at 06:23 +0100, Ingo Molnar wrote: > > > Having said that, we generally try to make things perform well without apps > > having to switch themselves to SCHED_BATCH. Mike, do you think we can make > > x264 perform as well (or nearly as well) under SCHED_OTHER as under > > SCHED_BATCH? > > It's not bad as is, except for ultrafast mode. START_DEBIT is the > biggest problem there. I don't think SCHED_OTHER will ever match > SCHED_BATCH for this load, though I must say I haven't full-spectrum > tested. This load really wants RR scheduling, and wakeup preemption > necessarily perturbs run order. > > I'll probably piddle with it some more, it's an interesting load. Yes, i must say, very interresting, its very complicated and... oh wait, its just encoding a movie! > > -Mike > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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