Re: [PATCH 0/7] slub: Fastpath optimization (especially for RT) V1

[Christoph Lameter]

On Thu, 11 Dec 2014, Jesper Dangaard Brouer wrote:

> I was expecting to see at least (specifically) 4.291 ns improvement, as
> this is the measured[1] cost of preempt_{disable,enable] on my system.

Right. Those calls are taken out of the fastpaths by this patchset for
the CONFIG_PREEMPT case. So the numbers that you got do not make much
sense to me.
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