Re: [patch 0/6] mm: alloc_percpu and bigrefs

[David S. Miller]

From: Andrew Morton <akpm@xxxxxxxx>
Date: Fri, 23 Sep 2005 00:10:13 -0700

> Ravikiran G Thirumalai <kiran@xxxxxxxxxxxx> wrote:
> >
> > Hi Andrew,
> > This patchset contains alloc_percpu + bigrefs + bigrefs for netdevice
> > refcount.  This patchset improves tbench lo performance by 6% on a 8 way IBM
> > x445.
> 
> I think we'd need more comprehensive benchmarks than this before adding
> large amounts of complex core code.

I agree.  tbench over loopback is about as far from real life
as it gets.

I'm still against expanding these networking datastructures with
bigrefs just for this stuff.  Some people have per-cpu and per-node on
the brain, and it's starting to bloat things up a little bit too much.
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