From owner-freebsd-questions@FreeBSD.ORG Mon Nov 30 11:38:12 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 603E71065670; Mon, 30 Nov 2009 11:38:12 +0000 (UTC) (envelope-from ohartman@zedat.fu-berlin.de) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) by mx1.freebsd.org (Postfix) with ESMTP id 187228FC17; Mon, 30 Nov 2009 11:38:11 +0000 (UTC) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost1.zedat.fu-berlin.de (Exim 4.69) with esmtp (envelope-from ) id <1NF4a1-0008Cf-Lf>; Mon, 30 Nov 2009 12:38:09 +0100 Received: from telesto.geoinf.fu-berlin.de ([130.133.86.198]) by inpost2.zedat.fu-berlin.de (Exim 4.69) with esmtpsa (envelope-from ) id <1NF4a1-0001PC-K5>; Mon, 30 Nov 2009 12:38:09 +0100 Message-ID: <4B13AECE.2060005@zedat.fu-berlin.de> Date: Mon, 30 Nov 2009 11:38:54 +0000 From: "O. Hartmann" Organization: Freie =?ISO-8859-15?Q?Universit=E4t_Berlin?= User-Agent: Thunderbird 2.0.0.23 (X11/20091126) MIME-Version: 1.0 To: Thomas Backman References: <4B13869D.1080907@zedat.fu-berlin.de> <0D3A9408-84A8-4C74-A318-F580B41FC1A6@exscape.org> In-Reply-To: <0D3A9408-84A8-4C74-A318-F580B41FC1A6@exscape.org> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: 130.133.86.198 Cc: FreeBSD Stable , freebsd-questions@freebsd.org Subject: Re: Phoronix Benchmarks: Waht's wrong with FreeBSD 8.0? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Nov 2009 11:38:12 -0000 Thomas Backman wrote: > On Nov 30, 2009, at 9:47 AM, O. Hartmann wrote: > >> I'm just wondering what's wrong with FreeBSD 8.0/amd64 when I read the Benchmarks on Phoronix.org's website. Especially FreeBSD's threaded I/O shows in contrast to all claims that have been to be improoved the opposite. > Corrected link: http://www.phoronix.com/scan.php?page=article&item=freebsd8_benchmarks&num=1 > > And yeah, quite honestly: disk scheduling in FreeBSD appears to suck... The only reason I'm not switching from Linux. :( > > Regards, > Thomas > > (PS. See my thread about horrible console latency during disk IO in the archives, very related. DS.) Hello Thomas. I recall myself having had similar problems during heavy disk I/O (UFS and ZFS) with stuck console, stuck clients and especially stuck X11-clients. The discussion was really 'hot', but in the end no clear statement was made whether this is disk-i/o related or a deeper problem in the scheduler. Sorry for the lack of the link, I thought Phoronix is well known ... Oliver