Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261734AbVCaUEC (ORCPT ); Thu, 31 Mar 2005 15:04:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261741AbVCaUEC (ORCPT ); Thu, 31 Mar 2005 15:04:02 -0500 Received: from fire.osdl.org ([65.172.181.4]:33982 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S261734AbVCaUD6 (ORCPT ); Thu, 31 Mar 2005 15:03:58 -0500 Date: Thu, 31 Mar 2005 12:05:53 -0800 (PST) From: Linus Torvalds To: "Chen, Kenneth W" cc: "'Ingo Molnar'" , "'Nick Piggin'" , "'Andrew Morton'" , linux-kernel@vger.kernel.org Subject: RE: Industry db benchmark result on recent 2.6 kernels In-Reply-To: <200503311953.j2VJrog22170@unix-os.sc.intel.com> Message-ID: References: <200503311953.j2VJrog22170@unix-os.sc.intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 900 Lines: 20 On Thu, 31 Mar 2005, Chen, Kenneth W wrote: > > No, there are no idle time on the system. If system become I/O bound, we > would do everything we can to remove that bottleneck, i.e., throw a couple > hundred GB of memory to the system, or add a couple hundred disk drives, > etc. Believe it or not, we are currently CPU bound and that's the reason > why I care about every single cpu cycle being spend in the kernel code. Can you post oprofile data for a run? Preferably both for the "best case" 2.6.x thing (no point in comparing 2.4.x oprofiles with current) and for "current kernel", whether that be 2.6.11 or some more recent snapshot? 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/