From owner-freebsd-performance@FreeBSD.ORG Wed Oct 24 01:25:05 2007 Return-Path: Delivered-To: freebsd-performance@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9557216A419; Wed, 24 Oct 2007 01:25:05 +0000 (UTC) (envelope-from davidxu@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 7BDEB13C480; Wed, 24 Oct 2007 01:25:05 +0000 (UTC) (envelope-from davidxu@FreeBSD.org) Received: from [127.0.0.1] (root@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.1/8.14.1) with ESMTP id l9O1P0Ip007120; Wed, 24 Oct 2007 01:25:02 GMT (envelope-from davidxu@freebsd.org) Message-ID: <471E9F21.7090902@freebsd.org> Date: Wed, 24 Oct 2007 09:25:53 +0800 From: David Xu User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.13) Gecko/20070516 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Kris Kennaway References: <8cb6106e0710230902x4edf2c8eu2d912d5de1f5d4a2@mail.gmail.com> <471E343C.2040509@FreeBSD.org> In-Reply-To: <471E343C.2040509@FreeBSD.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: josh.carroll@gmail.com, remy.nonnenmacher@activnetworks.com, freebsd-performance@FreeBSD.org Subject: Re: ULE vs. 4BSD in RELENG_7 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Oct 2007 01:25:05 -0000 Kris Kennaway wrote: > One major difference is that your workload is 100% user. Also you were > reporting ULE had more idle time, which looks like a bug since I would > expect it be basically 0% idle on such a workload. > > Kris > We can not ignore this performance bug, also I had found that ULE is slower than 4BSD when testing super-smack's update benchmark on my dual-core machine. Regards, David Xu