My wish list for 6.1

[Martin Cracauer]

Kris Kennaway wrote on Sat, Dec 24, 2005 at 12:35:47PM +1030: 
> Martin Cracauer wrote:
> 
> > 
> > I tried to model different worklods.  The parallel part of my
> > benchmark suite has CPU-heavy processes, short plain http, php, long
> > plain http and mixtures thereof.
> > 
> > None of these showed the SMP kernel to be an overall disadvantage on a
> > one-processor system.
> 
> What you want is to find a real-world workload that exercises a lot of 
> mutexes.  These exist, and they'll see the most pessimization from 
> running SMP kernel on UP.

Well, I would be thankful for some ideas.

I'd like to develop my benchmark suite from a pure hardware testing
platform into one which can be used to measure improvements in SMP
kernels. 

However, I am fully aware that what I am doing now (CPU loaders, and
small and big http over localhost, make -j <x>) doesn't cut it.

If you want to keep hardware out of the loop, things become hairy.

Martin
-- 
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Martin Cracauer <cracauer at cons.org>   http://www.cons.org/cracauer/
FreeBSD - where you want to go, today.      http://www.freebsd.org/