* Chuck Ebbert <[EMAIL PROTECTED]> wrote: > On Fri, 29 Jul 2005 at 17:02:07 +0200, Ingo Molnar wrote: > > > do wakeup-balancing only if the wakeup-CPU is idle. > > > > this prevents excessive wakeup-balancing while the system is highly > > loaded, but helps spread out the workload on partly idle systems. > > I tested this with Volanomark on dual-processor PII Xeon -- the > results were very bad:
which patch have you tested? The mail you replied to above is for patch #2, while on SMT/HT boxes it's patch #3 that is the correct approach. furthermore, which base kernel have you applied the patch to? Best would be to test the following kernels: 2.6.13-rc4 + sched-rollup 2.6.13-rc4 + sched-rollup + better-wake-balance-#3 the sched-rollup and the latest better-wake-balance patches can be found at: http://redhat.com/~mingo/scheduler-patches/ (sched-rollup is the current scheduler patch-queue in -mm. And if you have time, it would also be nice to have a 2.6.13-rc4 baseline for VolanoMark, and perhaps a 2.6.12 measurement too, so that we can see how things changed.) Ingo - 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/
