|From:||Peter Zijlstra <peterz-AT-infradead.org>|
|To:||Rik van Riel <riel-AT-redhat.com>|
|Subject:||Re: [RFC][PATCH 0/8] Speculative pagefault -v3|
|Date:||Mon, 04 Jan 2010 22:46:13 +0100|
|Cc:||"Paul E. McKenney" <paulmck-AT-linux.vnet.ibm.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu-AT-jp.fujitsu.com>, "linux-kernel-AT-vger.kernel.org" <linux-kernel-AT-vger.kernel.org>, "linux-mm-AT-kvack.org" <linux-mm-AT-kvack.org>, "minchan.kim-AT-gmail.com" <minchan.kim-AT-gmail.com>, cl-AT-linux-foundation.org, "hugh.dickins" <hugh.dickins-AT-tiscali.co.uk>, Nick Piggin <nickpiggin-AT-yahoo.com.au>, Ingo Molnar <mingo-AT-elte.hu>, Linus Torvalds <torvalds-AT-linux-foundation.org>|
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! -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to firstname.lastname@example.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"email@example.com"> firstname.lastname@example.org </a>
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