From owner-freebsd-stable@FreeBSD.ORG Tue May 24 16:56:39 2005 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C182F16A44C for ; Tue, 24 May 2005 16:56:39 +0000 (GMT) (envelope-from fcash@ocis.net) Received: from imap.sd73.bc.ca (smtp.sd73.bc.ca [142.24.13.149]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C2C443D54 for ; Tue, 24 May 2005 16:56:39 +0000 (GMT) (envelope-from fcash@ocis.net) Received: from localhost (localhost [127.0.0.1]) by localhost.sd73.bc.ca (Postfix) with ESMTP id 5F0F418CC4C for ; Tue, 24 May 2005 09:56:39 -0700 (PDT) Received: from imap.sd73.bc.ca ([127.0.0.1]) by localhost (mailtest.sd73.bc.ca [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 67406-02-21 for ; Tue, 24 May 2005 09:56:38 -0700 (PDT) Received: from s9.sbo (s9.sbo [192.168.0.9]) by imap.sd73.bc.ca (Postfix) with ESMTP id 0F98B18CC3F for ; Tue, 24 May 2005 09:56:38 -0700 (PDT) From: Freddie Cash To: stable@freebsd.org Date: Tue, 24 May 2005 09:56:36 -0700 User-Agent: KMail/1.8 References: <3248.172.16.0.199.1116876092.squirrel@172.16.0.1> <200505240922.42822.fcash@ocis.net> <4293571C.1040109@incubus.de> In-Reply-To: <4293571C.1040109@incubus.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200505240956.37048.fcash@ocis.net> X-Virus-Scanned: by amavisd-new using ClamAV at sd73.bc.ca Cc: Subject: Re: Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches) 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: Tue, 24 May 2005 16:56:39 -0000 On May 24, 2005 09:32 am, you wrote: > Freddie Cash wrote: > > The laptop has an ATI IXP chipset, which means the HD is detected and > > run as a generic UDMA33 device. The kernel is using the 4BSD > > scheduler with PREEMPTION enabled, all debugging hints disabled, and > > all the mpsafe sysctls enabled. > Hmm.. maybe the disk (interface) is just too slow to trigger this when > running in UDMA33 (and a slow notebook disk).. I have observed it on a > SATA Seagate setup (on ICH6 chipset). Just a wild guess. That is a possibility, yes. Next time I upgrade Firefox or Thunderbird, I'll have to watch the processor and disk usage to see if that's the case. -- Freddie Cash fcash@ocis.net