On Sun, 2013-01-27 at 21:25 +0800, Alex Shi wrote: > On 01/27/2013 06:35 PM, Borislav Petkov wrote: > > On Sun, Jan 27, 2013 at 05:36:25AM +0100, Mike Galbraith wrote: > >> With aim7 compute on 4 node 40 core box, I see stable throughput > >> improvement at tasks = nr_cores and below w. balance and powersaving. ... > > Ok, this is sick. How is balance and powersaving better than perf? Both > > have much more jobs per minute than perf; is that because we do pack > > much more tasks per cpu with balance and powersaving? > > Maybe it is due to the lazy balancing on balance/powersaving. You can > check the CS times in /proc/pid/status.
Well, it's not wakeup path, limiting entry frequency per waker did zip squat nada to any policy throughput. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
