Re: [PATCH net-next] net: allocate skbs on local node

Andrew Morton
2010-10-12T07:58:25Z

On Tue, 12 Oct 2010 09:49:53 +0200 Eric Dumazet <eric.dumazet@gmail.com> wrote:

> Le mardi 12 octobre 2010 à 00:24 -0700, Andrew Morton a écrit :
>
> > I'd love to forget it, but it's faster for some things (I forget
> > which). Which is why it's still around.
>
> Yes, two years ago it was true on pathological/obscure cases.
> Every time I did the comparison, SLUB won.
> You asked me, I did yet another test this morning, and 40% is pretty
> serious, I believe.
>
> >
> > And the ghastly thing about this is that you're forced to care about it
> > too because some people are, apparently, still using it.
> >
>
> Yes, some people (in my company) still use linux 2.6.9 32bit on HP G6/G7
> machines, I know...
>
> I am not saying we should not care, but for any serious network workload
> on NUMA arches, SLUB is the best, and seeing Christoph recent work, it
> might even get better.
>
> BTW, I believe all modern distros ship SLUB, dont they ?
>

Dunno.

Pekka, why haven't we deleted slab yet??