From owner-freebsd-stable@FreeBSD.ORG Wed Mar 23 21:11:30 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7CE87106566C for ; Wed, 23 Mar 2011 21:11:30 +0000 (UTC) (envelope-from george+freebsd@m5p.com) Received: from mailhost.m5p.com (unknown [IPv6:2001:418:3fd::3]) by mx1.freebsd.org (Postfix) with ESMTP id 509DC8FC0A for ; Wed, 23 Mar 2011 21:11:30 +0000 (UTC) Received: from wonderland.m5p.com (wonderland.m5p.com [IPv6:2001:418:3fd::19]) by mailhost.m5p.com (8.14.3/8.14.3) with ESMTP id p2NLBOmJ060768 for ; Wed, 23 Mar 2011 17:11:29 -0400 (EDT) (envelope-from george+freebsd@m5p.com) Message-ID: <4D8A61FC.3050303@m5p.com> Date: Wed, 23 Mar 2011 17:11:24 -0400 From: George Mitchell User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.13) Gecko/20110215 Thunderbird/3.1.7 MIME-Version: 1.0 To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 2.799 (**) BAYES_00,TO_NO_BRKTS_DIRECT X-Scanned-By: MIMEDefang 2.67 on IPv6:2001:418:3fd::f7 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (mailhost.m5p.com [IPv6:2001:418:3fd::f7]); Wed, 23 Mar 2011 17:11:29 -0400 (EDT) Subject: Re: Firefox startup impacted by distributed.net client X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Mar 2011 21:11:30 -0000 Original message, from ten months ago: http://lists.freebsd.org/pipermail/freebsd-hackers/2010-May/031915.html Briefly, running the distributed.net client on my FreeBSD 8.0 box made Firefox take forever to start up (90 seconds vs. 2 seconds). The distributed.net client is essentially 100% CPU bound, with occasional file I/O and even more occasional socket I/O, running at nice 20. The problem has persisted since then. So I finally compiled up a kernel using SCHED_4BSD instead of SCHED_ULE. Problem fixed. It still doesn't give me a warm, fuzzy feeling about FreeBSD 8.0, since I still have the awful NFS client performance problem (though not as bad as before the Rick Macklem patch). -- George Mitchell