On Fri, Sep 28, 2012 at 05:50:20AM +0200, Mike Galbraith wrote: > And wakeup preemption is still disabled as well, correct?
Yes it is by default anyway: $ cat /mnt/dbg/sched_features GENTLE_FAIR_SLEEPERS START_DEBIT NO_NEXT_BUDDY LAST_BUDDY CACHE_HOT_BUDDY NO_WAKEUP_PREEMPTION ARCH_POWER NO_HRTICK NO_DOUBLE_TICK LB_BIAS OWNER_SPIN NONTASK_POWER TTWU_QUEUE NO_FORCE_SD_OVERLAP RT_RUNTIME_SHARE NO_LB_MIN NO_WAKEUP_PREEMPTION brings 9% improvement with pgbench, btw: http://marc.info/?l=linux-kernel&m=134876312310048 -- Regards/Gruss, Boris. -- 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/
