Re: [RFC][PATCH RT 1/2] futex_requeue-optimize

From: Sébastien Dugué
Date: Fri May 12 2006 - 07:08:48 EST


On Fri, 2006-05-12 at 10:10 +0200, Sébastien Dugué wrote:
> On Fri, 2006-05-12 at 08:32 +0200, Ingo Molnar wrote:
> > * Andrew Morton <akpm@xxxxxxxx> wrote:
> >
> > > Should the futex code be using hlist_heads for that hashtable?
> >
> > yeah. That would save 1K of .data on 32-bit platforms, 2K on 64-bit
> > platforms.
>
> I'll try to look into this.
>

Well, moving the hash bucket list to an hlist may save a few bytes on
.data, but all the insertions are done at the tail on this list which
would not be easily done using hlists.

Any thoughts?

Sébastien.

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