From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by kanga.kvack.org (Postfix) with ESMTP id CE5DF6B007B for ; Tue, 21 Oct 2014 13:56:13 -0400 (EDT) Received: by mail-wg0-f43.google.com with SMTP id m15so1944175wgh.26 for ; Tue, 21 Oct 2014 10:56:12 -0700 (PDT) Received: from casper.infradead.org (casper.infradead.org. [2001:770:15f::2]) by mx.google.com with ESMTPS id cn2si13632415wib.60.2014.10.21.10.56.11 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Oct 2014 10:56:11 -0700 (PDT) Date: Tue, 21 Oct 2014 19:56:03 +0200 From: Peter Zijlstra 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> Sender: owner-linux-mm@kvack.org List-ID: 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 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, 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