Re: [PATCH 2/7] Simple Performance Counters: x86_64 support

Christoph Lameter
2007-08-01T18:29:44Z

On Wed, 1 Aug 2007, Andi Kleen wrote:

> > But then the numbers are not comparable across systems.
>
> That would only matter if you're interested in absolute system
> performance of different systems.

Yes I am definitely interested in seeing which type of cpu runs a certain
section faster.

> If you want absolute comparable system performance benchmarks I don't think
> micro-instrumenting the kernel is a good approach.

It is certainly interesting to compare alternative ways of handling the
instruction streams by various processors or models of processors.