On Wed, Jul 15, 2015 at 12:58 PM Chris Mason <clm@fb.com> 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.