From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f44.google.com (mail-wg0-f44.google.com [74.125.82.44]) by kanga.kvack.org (Postfix) with ESMTP id 842896B0074 for ; Tue, 21 Oct 2014 13:12:52 -0400 (EDT) Received: by mail-wg0-f44.google.com with SMTP id y10so1864129wgg.3 for ; Tue, 21 Oct 2014 10:12:52 -0700 (PDT) Received: from jenni1.inet.fi (mta-out1.inet.fi. [62.71.2.194]) by mx.google.com with ESMTP id s7si13468173wix.49.2014.10.21.10.12.47 for ; Tue, 21 Oct 2014 10:12:48 -0700 (PDT) Date: Tue, 21 Oct 2014 20:09:48 +0300 From: "Kirill A. Shutemov" Subject: Re: [RFC][PATCH 0/6] Another go at speculative page faults Message-ID: <20141021170948.GA25964@node.dhcp.inet.fi> References: <20141020215633.717315139@infradead.org> <20141021162340.GA5508@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141021162340.GA5508@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Ingo Molnar Cc: Peter Zijlstra , torvalds@linux-foundation.org, paulmck@linux.vnet.ibm.com, tglx@linutronix.de, akpm@linux-foundation.org, riel@redhat.com, mgorman@suse.de, oleg@redhat.com, mingo@redhat.com, minchan@kernel.org, kamezawa.hiroyu@jp.fujitsu.com, viro@zeniv.linux.org.uk, laijs@cn.fujitsu.com, dave@stgolabs.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org On Tue, Oct 21, 2014 at 06:23:40PM +0200, Ingo Molnar wrote: > > * Peter Zijlstra wrote: > > > My Ivy Bridge EP (2*10*2) has a ~58% improvement in pagefault throughput: > > > > PRE: > > 149,441,555 page-faults ( +- 1.25% ) > > > > POST: > > 236,442,626 page-faults ( +- 0.08% ) > > > My Ivy Bridge EX (4*15*2) has a ~78% improvement in pagefault throughput: > > > > PRE: > > 105,789,078 page-faults ( +- 2.24% ) > > > > POST: > > 187,751,767 page-faults ( +- 2.24% ) > > I guess the 'PRE' and 'POST' numbers should be flipped around? I think it's faults per second. It would be interesting to see if the patchset affects non-condended case. Like a one-threaded workload. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org