Re: [patch 0/7] [RFC] SLUB: Improve allocpercpu to reduce per cpu access overhead

From: Herbert Xu
Date: Mon Nov 12 2007 - 05:54:00 EST


David Miller <davem@xxxxxxxxxxxxx> wrote:
>
> Each IP compression tunnel instance does an alloc_percpu().

Actually all IPComp tunnels share one set of objects which are
allocated per-cpu. So only the first tunnel would do that.

In fact that was precisely the reason why per-cpu is used in
IPComp as otherwise we can just allocate normal memory.

Cheers,
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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