Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753177AbYKQTs0 (ORCPT ); Mon, 17 Nov 2008 14:48:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752020AbYKQTsQ (ORCPT ); Mon, 17 Nov 2008 14:48:16 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:33924 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751633AbYKQTsQ (ORCPT ); Mon, 17 Nov 2008 14:48:16 -0500 Date: Mon, 17 Nov 2008 11:47:24 -0800 (PST) From: Linus Torvalds To: David Miller cc: mingo@elte.hu, dada1@cosmosbay.com, 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 Subject: Re: [Bug #11308] tbench regression on each kernel release from 2.6.22 -> 2.6.28 In-Reply-To: <20081117.113158.200497613.davem@davemloft.net> Message-ID: References: <20081117110119.GL28786@elte.hu> <4921539B.2000002@cosmosbay.com> <20081117161135.GE12081@elte.hu> <20081117.113158.200497613.davem@davemloft.net> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 738 Lines: 21 On Mon, 17 Nov 2008, David Miller wrote: > > The scheduler has accounted for at least %10 of the tbench > regressions at this point, what are you talking about? I'm wondering if you're not looking at totally different issues. For example, if I recall correctly, David had a big hit on the hrtimers. And I wonder if perhaps Ingo's numbers are without hrtimers or something? The other possibility is that it's just a sparc suckiness issue, that simply doesn't show up on x86. Linus -- 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/