Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264366AbTEGXLh (ORCPT ); Wed, 7 May 2003 19:11:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264363AbTEGXLd (ORCPT ); Wed, 7 May 2003 19:11:33 -0400 Received: from inet-mail3.oracle.com ([148.87.2.203]:50909 "EHLO inet-mail3.oracle.com") by vger.kernel.org with ESMTP id S264362AbTEGXKc (ORCPT ); Wed, 7 May 2003 19:10:32 -0400 Date: Wed, 7 May 2003 16:19:20 -0700 From: Joel Becker To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: Re: WimMark I report for 2.5.69 Message-ID: <20030507231919.GA3989@ca-server1.us.oracle.com> Mail-Followup-To: Andrew Morton , linux-kernel@vger.kernel.org References: <20030507175422.GX3989@ca-server1.us.oracle.com> <20030507154150.005db55e.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030507154150.005db55e.akpm@digeo.com> X-Burt-Line: Trees are cool. X-Red-Smith: Ninety feet between bases is perhaps as close as man has ever come to perfection. User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1378 Lines: 39 On Wed, May 07, 2003 at 03:41:50PM -0700, Andrew Morton wrote: > > Runs: 1462.17 1005.78 1995.99 > > ... > > This benchmark is sensitive to random system events. > > You can say that again. > > We need to understand why there is such variation. If we can do that, > then perhaps we can make those 1.0's and 1.5's go away. Some kernels run very very even. Others do not. I suspect that certain kernel behaviors and changes exacerbate the issues. > Is that a thing you can work on? One approach would be to vary parameters > (filesystem type, amount of memory, TCQ lengths, workload, whatever) and > see which ones the throughput is sensitive to. I can try. I'm currently trying to catch up to the state-of-the-penguin, as I also have some test patches from Nick to run. These runs take a while, and I've been busy as well. Joel -- "Any man who is under 30, and is not a liberal, has not heart; and any man who is over 30, and is not a conservative, has no brains." - Sir Winston Churchill Joel Becker Senior Member of Technical Staff Oracle Corporation E-mail: joel.becker@oracle.com Phone: (650) 506-8127 - 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/