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Date: Fri, 04 Dec 2015 03:07:56 +0100 From: Mike Galbraith <umgwanakikbuti@...il.com> To: Waiman Long <waiman.long@....com> Cc: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, linux-kernel@...r.kernel.org, Yuyang Du <yuyang.du@...el.com>, Paul Turner <pjt@...gle.com>, Ben Segall <bsegall@...gle.com>, Morten Rasmussen <morten.rasmussen@....com>, Scott J Norton <scott.norton@....com>, Douglas Hatch <doug.hatch@....com> Subject: Re: [PATCH v2 2/3] sched/fair: Move hot load_avg into its own cacheline On Thu, 2015-12-03 at 14:34 -0500, Waiman Long wrote: > On 12/02/2015 11:32 PM, Mike Galbraith wrote: > > Is that with the box booted skew_tick=1? > I haven't tried that kernel parameter. I will try it to see if it can > improve the situation. BTW, will there be other undesirable side effects > of using this other than the increased power consumption as said in the > kernel-parameters.txt file? Not that are known. I kinda doubt you'd notice the power, but you should see a notable performance boost. Who knows, with a big enough farm of busy big boxen, it may save power by needing fewer of them. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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