From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 84729AC1 for ; Wed, 15 Jul 2015 20:32:45 +0000 (UTC) Received: from mail-yk0-f177.google.com (mail-yk0-f177.google.com [209.85.160.177]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id E14771D1 for ; Wed, 15 Jul 2015 20:32:44 +0000 (UTC) Received: by ykay190 with SMTP id y190so46945998yka.3 for ; Wed, 15 Jul 2015 13:32:44 -0700 (PDT) MIME-Version: 1.0 References: <20150715153725.GA12601@ret.masoncoding.com> <1436989195.6856.4.camel@infradead.org> <20150715195837.GA14507@ret.masoncoding.com> In-Reply-To: <20150715195837.GA14507@ret.masoncoding.com> From: Kristen Accardi Date: Wed, 15 Jul 2015 20:32:34 +0000 Message-ID: To: Chris Mason , David Woodhouse Content-Type: multipart/alternative; boundary=001a114fbcb66a1d34051aefdb0d Cc: Artem Bityutskiy , ksummit-discuss@lists.linuxfoundation.org Subject: Re: [Ksummit-discuss] [TECH TOPIC] benchmarking and performance trends List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --001a114fbcb66a1d34051aefdb0d Content-Type: text/plain; charset=UTF-8 On Wed, Jul 15, 2015 at 12:58 PM Chris Mason wrote: > 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 > > Artem has setup this capability with 2 server benchmarks (specpower and specweb) and has been taking a look at upstream kernel PnP with regard to these benchmarks on specific intel platforms. --001a114fbcb66a1d34051aefdb0d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Wed, Jul 15= , 2015 at 12:58 PM Chris Mason <clm@fb.com= > wrote:
On Wed, Jul 15, 201= 5 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 do= ing
> > on non-server platforms as well.=C2=A0 I find it difficult to kno= w 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 mor= e 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.=C2=A0= 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


Artem has setup this capability with 2= server benchmarks (specpower and specweb) and has been taking a look at up= stream kernel PnP with regard to these benchmarks on specific intel platfor= ms.


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