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Date: Wed, 15 Jul 2015 15:58:37 -0400
From: Chris Mason <clm@fb.com>
To: David Woodhouse <dwmw2@infradead.org>
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Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [TECH TOPIC] benchmarking and performance
 trends
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On Wed, Jul 15, 2015 at 08:39:55PM +0100, David Woodhouse wrote:
> On Wed, 2015-07-15 at 19:23 +0000, Kristen Accardi wrote:
> > I am very interested to hear what if any benchmarks people are doing 
> > on non-server platforms as well.  I find it difficult to know what 
> > benchmarks customers think are important for upstream linux for 
> > desktop and mobile systems that are not running Android or Chrome, 
> > and would love to hear what others are using.
> 
> I would imagine the most interesting metrics are all about power vs.
> performance, rather than pure performance. 
> 
> In fact, in the server environment where you have to pay for the power
> in the first place, and then pay again for the air conditioning to
> extract the resulting heat, I'm surprised it isn't already more of a
> consideration.

It would be fun to use turbostat or a rack power meter to
measure/compare power usage between two kernels in a given benchmark.  I
think the power meters we do have are not going to be fine grained
enough to give valid results, but if turbostat is consistent enough we
could try it.

-chris