Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933701AbaJUR4N (ORCPT ); Tue, 21 Oct 2014 13:56:13 -0400 Received: from casper.infradead.org ([85.118.1.10]:53116 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933430AbaJUR4L (ORCPT ); Tue, 21 Oct 2014 13:56:11 -0400 Date: Tue, 21 Oct 2014 19:56:03 +0200 From: Peter Zijlstra To: "Kirill A. Shutemov" Cc: Ingo Molnar , 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: <20141021175603.GI3219@twins.programming.kicks-ass.net> References: <20141020215633.717315139@infradead.org> <20141021162340.GA5508@gmail.com> <20141021170948.GA25964@node.dhcp.inet.fi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141021170948.GA25964@node.dhcp.inet.fi> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 21, 2014 at 08:09:48PM +0300, Kirill A. Shutemov wrote: > It would be interesting to see if the patchset affects non-condended case. > Like a one-threaded workload. It does, and not in a good way, I'll have to look at that... :/ Performance counter stats for './multi-fault 1' (5 runs): 73,860,251 page-faults ( +- 0.28% ) 40,914 cache-misses ( +- 41.26% ) 60.001484913 seconds time elapsed ( +- 0.00% ) Performance counter stats for './multi-fault 1' (5 runs): 70,700,838 page-faults ( +- 0.03% ) 31,466 cache-misses ( +- 8.62% ) 60.001753906 seconds time elapsed ( +- 0.00% ) -- 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/