Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752576AbYHLHLW (ORCPT ); Tue, 12 Aug 2008 03:11:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751575AbYHLHLM (ORCPT ); Tue, 12 Aug 2008 03:11:12 -0400 Received: from one.firstfloor.org ([213.235.205.2]:43906 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751535AbYHLHLL (ORCPT ); Tue, 12 Aug 2008 03:11:11 -0400 To: Christoph Lameter Cc: David Miller , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: tbench regression on each kernel release from 2.6.22 -> 2.6.28 From: Andi Kleen References: <48A086B6.2000901@linux-foundation.org> <20080811.141501.01468546.davem@davemloft.net> <48A0B037.501@linux-foundation.org> Date: Tue, 12 Aug 2008 09:11:08 +0200 In-Reply-To: <48A0B037.501@linux-foundation.org> (Christoph Lameter's message of "Mon, 11 Aug 2008 16:33:43 -0500") Message-ID: <87r68u1zeb.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) 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: 597 Lines: 16 Christoph Lameter writes: > Maybe what we are seeing is general bloat in kernel execution paths > due to the growth in complexity? Wouldn't surprise me. Have you considered doing profiles? e.g. just oprofiling the benchmark on the different kernels and see if there's some obvious difference in the CPU consumers? -Andi -- 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/