From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754431AbYKQRko (ORCPT ); Mon, 17 Nov 2008 12:40:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752854AbYKQRkf (ORCPT ); Mon, 17 Nov 2008 12:40:35 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:47735 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752707AbYKQRke (ORCPT ); Mon, 17 Nov 2008 12:40:34 -0500 Date: Mon, 17 Nov 2008 09:38:43 -0800 (PST) From: Linus Torvalds To: Eric Dumazet cc: Ingo Molnar , David Miller , rjw@sisk.pl, linux-kernel@vger.kernel.org, kernel-testers@vger.kernel.org, cl@linux-foundation.org, efault@gmx.de, a.p.zijlstra@chello.nl, Stephen Hemminger Subject: Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 In-Reply-To: <4921AAD6.3010603@cosmosbay.com> Message-ID: References: <1ScKicKnTUE.A.VxH.DIHIJB@chimera> <20081117090648.GG28786@elte.hu> <20081117.011403.06989342.davem@davemloft.net> <20081117110119.GL28786@elte.hu> <4921539B.2000002@cosmosbay.com> <20081117161135.GE12081@elte.hu> <49219D36.5020801@cosmosbay.com> <20081117170844.GJ12081@elte.hu> <20081117172549.GA27974@elte.hu> <4921AAD6.3010603@cosmosbay.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 17 Nov 2008, Eric Dumazet wrote: > Ingo Molnar a écrit : > > it gives a small speedup of ~1% on my box: > > > > before: Throughput 3437.65 MB/sec 64 procs > > after: Throughput 3473.99 MB/sec 64 procs > > Strange, I get 2350 MB/sec on my 8 cpus box. "tbench 8" I think Ingo may have a Nehalem. Let's just say that those things rock, and have rather good memory throughput. Linus From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 Date: Mon, 17 Nov 2008 09:38:43 -0800 (PST) Message-ID: References: <1ScKicKnTUE.A.VxH.DIHIJB@chimera> <20081117090648.GG28786@elte.hu> <20081117.011403.06989342.davem@davemloft.net> <20081117110119.GL28786@elte.hu> <4921539B.2000002@cosmosbay.com> <20081117161135.GE12081@elte.hu> <49219D36.5020801@cosmosbay.com> <20081117170844.GJ12081@elte.hu> <20081117172549.GA27974@elte.hu> <4921AAD6.3010603@cosmosbay.com> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4921AAD6.3010603-fPLkHRcR87vqlBn2x/YWAg@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: TEXT/PLAIN; charset="iso-8859-1" To: Eric Dumazet Cc: Ingo Molnar , David Miller , rjw-KKrjLPT3xs0@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cl-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, efault-Mmb7MZpHnFY@public.gmane.org, a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org, Stephen Hemminger On Mon, 17 Nov 2008, Eric Dumazet wrote: > Ingo Molnar a =E9crit : > > it gives a small speedup of ~1% on my box: > >=20 > > before: Throughput 3437.65 MB/sec 64 procs > > after: Throughput 3473.99 MB/sec 64 procs >=20 > Strange, I get 2350 MB/sec on my 8 cpus box. "tbench 8" I think Ingo may have a Nehalem. Let's just say that those things rock,= =20 and have rather good memory throughput. Linus