Messages in this thread | | | Date | Fri, 28 Jun 2013 19:12:17 +0800 | From | Alex Shi <> | Subject | Re: [Resend patch v8 0/13] use runnable load in schedule balance |
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On 06/28/2013 07:07 PM, Peter Zijlstra wrote: > On Fri, Jun 28, 2013 at 03:56:25AM -0700, Paul Turner wrote: > >> So this is actually an interesting idea, but don't think of it as >> overweight. What "cfs_rq->blocked_load_avg / 2" means is actually >> blocked_load_avg one period from now. This is interesting because it >> makes the (reasonable) supposition that blocked load is not about to >> immediately wake, but will continue to decay. >> >> Could you try testing the gvr_lb_tip branch at >> git://git.kernel.org/pub/scm/linux/kernel/git/pjt/sched-tip.git ?
OK. will try it next week. >> >> It's an extension to your series that tries to improve some of the >> cpu_load interactions in an alternate way to the above. >> >> It seems a little better on one and two-socket machines; but we >> couldn't reproduce/compare to your best performance results since they >> were taken on larger machines. > > Oh nice.. it does away with the entire cpu_load[] array thing. Just what > Frederic needs for his NOHZ stuff as well -- he's currently abusing > LB_BIAS for that. >
-- Thanks Alex
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