Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933320AbaJURPT (ORCPT ); Tue, 21 Oct 2014 13:15:19 -0400 Received: from mta-out1.inet.fi ([62.71.2.194]:43489 "EHLO jenni1.inet.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932570AbaJURPR (ORCPT ); Tue, 21 Oct 2014 13:15:17 -0400 Date: Tue, 21 Oct 2014 20:09:48 +0300 From: "Kirill A. Shutemov" 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 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> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/