Messages in this thread | | | Date | Thu, 2 Aug 2007 09:19:56 +0200 | From | Ingo Molnar <> | Subject | Re: lmbench ctxsw regression with CFS |
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* Nick Piggin <npiggin@suse.de> wrote:
> > One thing to check out is whether the lmbench numbers are "correct". > > Especially on SMP systems, the lmbench numbers are actually *best* > > when the two processes run on the same CPU, even though that's not > > really at all the best scheduling - it's just that it artificially > > improves lmbench numbers because of the close cache affinity for the > > pipe data structures. > > Yes, I bound them to a single core.
could you send me the .config you used?
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