Re: [RFC][PATCH 0/8] Speculative pagefault -v3

[Rik van Riel]

On 01/04/2010 04:46 PM, Peter Zijlstra wrote:
> On Mon, 2010-01-04 at 16:41 -0500, Rik van Riel wrote:
> > On 01/04/2010 01:24 PM, Peter Zijlstra wrote:
> > > Patch series implementing speculative page faults for x86.
> >
> > Fun, but why do we need this?
>
> People were once again concerned with mmap_sem contention on threaded
> apps on large machines. Kame-san posted some patches, but I felt they
> weren't quite crazy enough ;-)

In that case, I assume that somebody else (maybe Kame-san or
Christoph) will end up posting a benchmark that shows how
these patches help.

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