Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Sep 2002 04:24:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Sep 2002 04:24:34 -0400 Received: from packet.digeo.com ([12.110.80.53]:47500 "EHLO packet.digeo.com") by vger.kernel.org with ESMTP id ; Thu, 19 Sep 2002 04:24:34 -0400 Message-ID: <3D898AEA.7E53DF1E@digeo.com> Date: Thu, 19 Sep 2002 01:29:30 -0700 From: Andrew Morton X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.4.19-rc5 i686) X-Accept-Language: en MIME-Version: 1.0 To: Daniel Phillips CC: Paolo Ciarrocchi , linux-kernel@vger.kernel.org Subject: Re: [chatroom benchmark version 1.0.1] Results References: <20020919080602.2986.qmail@linuxmail.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 19 Sep 2002 08:29:30.0811 (UTC) FILETIME=[ACD4D0B0:01C25FB6] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 880 Lines: 23 Daniel Phillips wrote: > > Just thought I'd bounce this one over to Andrew as a warm-n-fuzzy. Is a scheduler test, isn't it? > There's also some kind of hint that preemption improves throughput > here. One needs to treat any test which involves networking to localhost with caution. They tend to show large (+/- 10% or more) swings in throughput from one run to the next. Some sort of cache associativity thing; not sure. Running the test between separate machines is much, much more repeatable. We'll get the cpu-local hot pages list code going soon; that may provide some benefit to this sort of thing. Even on uniprocessor. - 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/