From owner-freebsd-stable@FreeBSD.ORG Mon Sep 29 10:00:13 2008 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 AF0FF106569F for ; Mon, 29 Sep 2008 10:00:13 +0000 (UTC) (envelope-from kometen@gmail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.153]) by mx1.freebsd.org (Postfix) with ESMTP id 356E08FC28 for ; Mon, 29 Sep 2008 10:00:12 +0000 (UTC) (envelope-from kometen@gmail.com) Received: by fg-out-1718.google.com with SMTP id l26so1346484fgb.35 for ; Mon, 29 Sep 2008 03:00:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=bFjcSDPA5KcI7LXkoKMpc+bmc8mFrjNUJ7AhTt47FC4=; b=EtVW12jYdPQcb6MlO3rsFDj2Ahyzl+K9hHm8d/1EsXyYnnIx1RViXITqCFWpWqHUvX EzQetog8JTKbWg+oSWucQ0cdWm365ssjUl67Lp/MkC/kPonTGixR7nNyvHwfLjDp6pSd Isa8YmJdecjNmDB8hbvpvjKhupcM3GywWtlaY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=YN4o7BL5QnqQtGIeEEsZTtq/btX55F0ObgPH3495ZXfLf2i9qXQfLSmRqe14W816bk FJwj40SR91gAxRm/fqah038NmgGANYz0T8adh13ih4zIjP9EBavAKyKD76VVXx1ofbVO zE5wufSnw+DJqSol1w7OyvdgF2yGtUf63ry28= Received: by 10.86.26.11 with SMTP id 11mr4099623fgz.12.1222682411807; Mon, 29 Sep 2008 03:00:11 -0700 (PDT) Received: by 10.86.54.10 with HTTP; Mon, 29 Sep 2008 03:00:11 -0700 (PDT) Message-ID: Date: Mon, 29 Sep 2008 12:00:11 +0200 From: "Claus Guttesen" To: "Danny Braniss" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080926081806.GA19055@icarus.home.lan> <20080926095230.GA20789@icarus.home.lan> Cc: freebsd-stable@freebsd.org Subject: Re: bad NFS/UDP performance 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, 29 Sep 2008 10:00:13 -0000 On Mon, Sep 29, 2008 at 11:39 AM, Danny Braniss wrote: >> > it more difficult than I expected. >> > for one, the kernel date was missleading, the actual source update is the key, so >> > the window of changes is now 28/July to 19/August. I have the diffs, but nothing >> > yet seems relevant. >> > >> > on the other hand, I tried NFS/TCP, and there things seem ok, ie the 'good' and the 'bad' >> > give the same throughput, which seem to point to UDP changes ... >> >> Can you post the network-numbers? > [again :-] Thank you. :-) Was not shure whether tcp gave you same performance compared to udp or tcp-performance was stable throughout the same period where udp would degrade. >> > Writing 16 MB file >> > BS Count /---- 7.0 ------/ /---- 7.1 -----/ > > should now read: > /---- Aug 18 ------/ /--- Aug 19 ----/ >> > 1*512 32768 0.16s 98.11MB/s 0.43s 37.18MB/s >> > 2*512 16384 0.17s 92.04MB/s 0.46s 34.79MB/s >> > 4*512 8192 0.16s 101.88MB/s 0.43s 37.26MB/s >> > 8*512 4096 0.16s 99.86MB/s 0.44s 36.41MB/s >> > 16*512 2048 0.16s 100.11MB/s 0.50s 32.03MB/s >> > 32*512 1024 0.26s 61.71MB/s 0.46s 34.79MB/s >> > 64*512 512 0.22s 71.45MB/s 0.45s 35.41MB/s >> > 128*512 256 0.21s 77.84MB/s 0.51s 31.34MB/s >> > 256*512 128 0.19s 82.47MB/s 0.43s 37.22MB/s >> > 512*512 64 0.18s 87.77MB/s 0.49s 32.69MB/s >> > 1024*512 32 0.18s 89.24MB/s 0.47s 34.02MB/s >> > 2048*512 16 0.17s 91.81MB/s 0.30s 53.41MB/s >> > 4096*512 8 0.16s 100.56MB/s 0.42s 38.07MB/s >> > 8192*512 4 0.82s 19.56MB/s 0.80s 19.95MB/s >> > 16384*512 2 0.82s 19.63MB/s 0.95s 16.80MB/s >> > 32768*512 1 0.81s 19.69MB/s 0.96s 16.64MB/s >> > >> > Average: 75.86 33.00 -- regards Claus When lenity and cruelty play for a kingdom, the gentler gamester is the soonest winner. Shakespeare