Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751996AbaGaP5g (ORCPT ); Thu, 31 Jul 2014 11:57:36 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:41834 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751805AbaGaP5f (ORCPT ); Thu, 31 Jul 2014 11:57:35 -0400 Date: Thu, 31 Jul 2014 17:57:23 +0200 From: Peter Zijlstra To: Rik van Riel Cc: Aaron Lu , LKML , lkp@01.org, jhladky@redhat.com Subject: Re: [LKP] [sched/numa] a43455a1d57: +94.1% proc-vmstat.numa_hint_faults_local Message-ID: <20140731155723.GY3588@twins.programming.kicks-ass.net> References: <53d70ee6.JsUEmW5dWsv8dev+%fengguang.wu@intel.com> <53D72FF5.90908@intel.com> <20140729023940.37b6aebc@annuminas.surriel.com> <20140731104241.GA9918@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GOaLjq+VdFesH+wR" Content-Disposition: inline In-Reply-To: <20140731104241.GA9918@twins.programming.kicks-ass.net> 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 --GOaLjq+VdFesH+wR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jul 31, 2014 at 12:42:41PM +0200, Peter Zijlstra wrote: > On Tue, Jul 29, 2014 at 02:39:40AM -0400, Rik van Riel wrote: > > On Tue, 29 Jul 2014 13:24:05 +0800 > > Aaron Lu wrote: > >=20 > > > FYI, we noticed the below changes on > > >=20 > > > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git mas= ter > > > commit a43455a1d572daf7b730fe12eb747d1e17411365 ("sched/numa: Ensure = task_numa_migrate() checks the preferred node") > > >=20 > > > ebe06187bf2aec1 a43455a1d572daf7b730fe12e =20 > > > --------------- ------------------------- =20 > > > 94500 ~ 3% +115.6% 203711 ~ 6% ivb42/hackbench/50%-threa= ds-pipe > > > 67745 ~ 4% +64.1% 111174 ~ 5% lkp-snb01/hackbench/50%-t= hreads-socket > > > 162245 ~ 3% +94.1% 314885 ~ 6% TOTAL proc-vmstat.numa_hi= nt_faults_local > >=20 > > Hi Aaron, > >=20 > > Jirka Hladky has reported a regression with that changeset as > > well, and I have already spent some time debugging the issue. >=20 > Let me see if I can still find my SPECjbb2005 copy to see what that > does. Jirka, what kind of setup were you seeing SPECjbb regressions? I'm not seeing any on 2 sockets with a single SPECjbb instance, I'll go check one instance per socket now. --GOaLjq+VdFesH+wR Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJT2mdjAAoJEHZH4aRLwOS6M+kP/RD0SOAHigylQc6H9zG08DKz aPlJSp0xH3v4WtjFkTtmiSCZSnQLog7VOpa8RiUxTzB7rS5VjJfKoyM1klv9iJe1 PW1cTGb1pfTAikpfxohwInHRRc+LzH1+DqwW7tSYfPaE0jlsvIp3jiW9g5aGLGUb Qw4nTJc/MVovYuD2TE01VMOYZIHIIhOrrogw1TtQLbozopx7pf4D/lILqoUe7/nd zUWX4VUzC/62tB9W54GnBqQjlmApap95tNHWwPgtDfEfvR62L3apNUzKCbqqQxV+ 0fxbgfOGqZQcCif6n2HiuXyCDnfB5Bw2t9cKazMdkcpZTJrcquBsXSr94r77d8Et pF/yHL2+OPkDg8fOsyfbN1VNjuCEAO+FdcMaIJmquIAnqHUyEEYPIb/i5FLFlB8g Uh8Vgbafbde3yzccMnJ9KtFWdC02ORvoGmZXqCpiedqkxzv9+crwEDrUlwSZu/oS necnnNtV8rGw3u+I7N4EiN8YsVi3dLS6hEed0sp4WPRrELYoQGnnetwI7zsnDWks aPHhb31TIcK9b44ZaEZnEtPrZ7X+5qyKmm+ZdrTG6Jk4FQ7krdjqxtJgX7WweLOC e8DaC/yMBqt4J+WbVtvY6671aX92s6RFuIXFVF4qnqLABmXU/wYUI8fyVgCNGsdn Si7yycmqNfRMXiROgAh3 =QJ0z -----END PGP SIGNATURE----- --GOaLjq+VdFesH+wR-- -- 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/