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* Ingo Molnar <mingo@elte.hu> wrote: > Matt, could you send me your .config too? Maybe i can reproduce it > with your config. ok, got it (off-list) and you seem to have the default HZ=250. Could you change it to HZ=1000 - does the delay get alot smaller? if yes then this could be roughly the expected worst-case behavior for a nice+19 'signalling' task - i'd suggest to try the dont-use-renice patch Rusty sent (with the hang it causes fixed), or to change the nice(19) to nice(10). (the rq_clock behavior still looks a bit anomalous, that perhaps contributes to the problem.) Ingo - 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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