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On Wed, 2007-09-19 at 10:06 -0700, Tong Li wrote: > Were the experiments run on a 2-CPU system? Yes. > When Xorg experiences large > wait time, is it on the same CPU that has the two pinned tasks? If this is > the case, then the problem could be X somehow advanced faster and got a > larger vruntime then the two pinned tasks, so it had to wait for the > pinned ones to catch up before it got a chance to be scheduled. Good question. I've not yet been able to capture any event where vruntimes are that far apart in sched_debug. -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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