Re: [PATCH] shrink per_cpu_pages to fit 32byte cacheline

Marcelo Tosatti
2004-09-15T00:48:08Z

On Wed, Sep 15, 2004 at 10:57:15AM +1000, Nick Piggin wrote:
> Marcelo Tosatti wrote:
>
> >>some version of that; I can't find it in my current one though. Hrmpf
> >>Maybe there's someone from intel or amd on this list who can confirm the
> >>performance impact of the 0x66 operand size override prefix
> >
> >
> >Prefix "data16" I see... Well it doesnt seem anyone really familiar with
> >this is part of the list - who you think would be sure about this?
> >
> >Jun Nakajima maybe?
> >
> >We need to be sure because we've just done for pagevec's.
>
> You could leave them as ints, and just make the size of the pagevec
> 14 on 32-bit archs and 15 on 64-bit ones.

Indeed!