Message-ID: <1449194876.3240.9.camel@gmail.com>
Subject: Re: [PATCH v2 2/3] sched/fair: Move hot load_avg into its own
 cacheline
From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Waiman Long <waiman.long@hpe.com>
Cc: Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>,
        linux-kernel@vger.kernel.org, Yuyang Du <yuyang.du@intel.com>,
        Paul Turner <pjt@google.com>, Ben Segall <bsegall@google.com>,
        Morten Rasmussen <morten.rasmussen@arm.com>,
        Scott J Norton <scott.norton@hpe.com>,
        Douglas Hatch <doug.hatch@hpe.com>
Date: Fri, 04 Dec 2015 03:07:56 +0100
In-Reply-To: <56609956.3030201@hpe.com>
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	 <1449117148.3314.5.camel@gmail.com> <56609956.3030201@hpe.com>
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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 

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