From owner-freebsd-stable@FreeBSD.ORG Mon Nov 30 11:29:45 2009 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 119651065672 for ; Mon, 30 Nov 2009 11:29:45 +0000 (UTC) (envelope-from bruce@cran.org.uk) Received: from muon.cran.org.uk (muon.cran.org.uk [66.246.138.153]) by mx1.freebsd.org (Postfix) with ESMTP id DB6118FC1F for ; Mon, 30 Nov 2009 11:29:44 +0000 (UTC) Received: from unknown (87-194-158-129.bethere.co.uk [87.194.158.129]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by muon.cran.org.uk (Postfix) with ESMTPSA id D5451877A; Mon, 30 Nov 2009 11:29:43 +0000 (UTC) Date: Mon, 30 Nov 2009 11:29:12 +0000 From: Bruce Cran To: Jeremy Chadwick Message-ID: <20091130112912.000016c1@unknown> In-Reply-To: <20091130094315.GA94119@icarus.home.lan> References: <4B13869D.1080907@zedat.fu-berlin.de> <0D3A9408-84A8-4C74-A318-F580B41FC1A6@exscape.org> <20091130094315.GA94119@icarus.home.lan> X-Mailer: Claws Mail 3.7.2cvs27 (GTK+ 2.16.0; i586-pc-mingw32msvc) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: Phoronix Benchmarks: Waht's wrong with FreeBSD 8.0? 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: Mon, 30 Nov 2009 11:29:45 -0000 On Mon, 30 Nov 2009 01:43:15 -0800 Jeremy Chadwick wrote: > I haven't looked at the Phoronix Test Suite[1], which is what's being > used for testing "threaded I/O". I don't understand what "threaded > I/O" means in this context; I'm assuming it means making a separate > LWP for each I/O transaction, e.g. multiple LWPs for I/O (within a > single program). Some technical details of the implementation/test > methodology would need to be provided for someone to assist in > tracking down the problem. > I've found the benchmark it's using: it runs tiobench from http://sourceforge.net/projects/tiobench/ with the parameters -f 16, 64, 128, 256 -t 4, 8, 16, 32 It's another project that for some reason doesn't produce releases - the last version was back in 2002. If someone's re-running the benchmark it might be better to use the version from cvs. -- Bruce Cran