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 -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/ FreeBSD - where you want to go, today. http://www.freebsd.org/ _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
