Re: tbench regression - Why process scheduler has impact on tbench and why small per-cpu slab (SLUB) cache creates the scenario?

[Nick Piggin]

On Wednesday 05 September 2007 17:07, Christoph Lameter wrote:
> On Wed, 5 Sep 2007, Zhang, Yanmin wrote:
> > > slub_max_order=3 slub_min_objects=8
> >
> > I tried this approach. The testing result showed 2.6.23-rc4 is about
> > 2.5% better than 2.6.22. It really resovles the issue.
>
> Note also that the configuration you tried is the way SLUB is configured
> in Andrew's tree.

It still doesn't sound like it is competitive with SLAB at the same sizes.
What's the problem?

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