| Subject | Re: [RFC][PATCH 0/8] Speculative pagefault -v3 | From | Peter Zijlstra <> | Date | Mon, 04 Jan 2010 22:46:13 +0100 |
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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 ;-)
> What improvements did you measure?
I got it not to crash :-) Although I'd not be surprised if other people do manage, it needs more eyes.
> I'll take a look over the patches to see whether they're > sane...
More appreciated, thanks!
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