From owner-freebsd-performance@FreeBSD.ORG Tue Sep 29 23:38:53 2009 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BAF2F1065672 for ; Tue, 29 Sep 2009 23:38:53 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-bw0-f227.google.com (mail-bw0-f227.google.com [209.85.218.227]) by mx1.freebsd.org (Postfix) with ESMTP id 447798FC08 for ; Tue, 29 Sep 2009 23:38:53 +0000 (UTC) Received: by bwz27 with SMTP id 27so4287950bwz.43 for ; Tue, 29 Sep 2009 16:38:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=ej4hF+OmaKgW6RxfGj1s2qjNjaGd2MdrBu2lFdC4DTM=; b=sCOFozj451IavNcW0Z947XkhL+h/RzY98DK8Wx8bcUmZ1HD0W/iO5rSHzmZoDagSm6 O/0inwPTjGnwAZpmlfG6z0nbGm8JU2P43Agf8pfs6tCuXOWR6RFfgegwzDlIgo7lN//Q dxtBUbVpCGPDARcv9rdvfKAWZxD3YmoFuw9AY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=eqXzzETf8TQOU9zh7Y59XFzPFiMkjIzzpeZWDdio+LihFFJ0oQXFoqPAYFuqWxzUvU +33tN7nRgoL0hKyfAgnByFt4rh0k6KcpZa+s/MLtlrd1e/uDmmZas4+sI7gaoAdcNLP4 GA01K+SGFRqhEh30zFrkzMVJGnOY72hhUXqXQ= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.143.79 with SMTP id t15mr1495502fau.6.1254267532153; Tue, 29 Sep 2009 16:38:52 -0700 (PDT) In-Reply-To: <4AC2968C.6020206@mail.zedat.fu-berlin.de> References: <689d500ec8c95542a53440b8a23ae773@mail.liquidphlux.com> <458792029.144491254249841202.JavaMail.root@shee.earlham.edu> <3bbf2fe10909291209h3c2b1c57se68e6030c2a5a044@mail.gmail.com> <4AC2968C.6020206@mail.zedat.fu-berlin.de> Date: Wed, 30 Sep 2009 01:38:52 +0200 X-Google-Sender-Auth: b9f4b4ef63d59cda Message-ID: <3bbf2fe10909291638o6901195sf60a4fd2e69f6215@mail.gmail.com> From: Attilio Rao To: "O. Hartmann" Content-Type: text/plain; charset=UTF-8 Cc: freebsd-performance@freebsd.org, Randy Schultz Subject: Re: FreeBSD vs Ubuntu - Discuss... 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: Tue, 29 Sep 2009 23:38:53 -0000 2009/9/30 O. Hartmann : > Attilio Rao wrote: >> 2009/9/29 Randy Schultz : >>> ----- "Andrew Kuriger" spaketh thusly: >>> >>> | >>> | Since the article says that they left the debugging features on I >>> | think >>> | this has a bit to do with it. Obviously the testers didn't care to >>> | read the >>> | documentation, and didn't seem to care to use the same compiler which >>> | is >>> | available in ports, I believe it is safe to chuck this lame >>> | benchmark. >>> >>> >>> Hrm. IMHO, this benchmark actually tells us something interesting. It tells us >>> that with the anchor thrown overboard, freebsd is nearly as fast as linux. >> >> I don't think this is the case. >> The tester claims to be using FreeBSD-RC1 which has all the mentioned >> debugging options off. >> And yes, we should adjust UPDATING in order to remove the (now) >> misleading writing about the debugging options. >> >> I think that the most interesting opionion these benchmarks tell is >> that we are slow on random, threaded I/O operations. I think we need >> to investigate more in this direction. >> >> Attilio >> >> > > Well, since FreeBSD 8.0 started, I realized on several boxes (doens't > matter whether SMP or UP, 2 GB or 8 GB or 16 GB) massive performance > issues when compiling, even on a 8-core box. This is not 'measured' in > hard numbers, it is the 'feeling' since we swapped to 8.0, but still > using the same setup and software environment. On boxes with X11, on > heavy disk I/O and/or heavy compiling, X11 clients sometimes stops for > 90 seconds, mouse gets jumpy etc. This is well known and well ignored, > although I'm not the only one experiencing this. What do you mean with 'well known' and 'well ignored'? Do you have pointes to such issues? Attilio -- Peace can only be achieved by understanding - A. Einstein