From owner-freebsd-stable@FreeBSD.ORG Sun Jan 9 18:38:47 2011 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 CAD3A106564A for ; Sun, 9 Jan 2011 18:38:47 +0000 (UTC) (envelope-from george@m5p.com) Received: from mailhost.m5p.com (unknown [IPv6:2001:418:3fd::3]) by mx1.freebsd.org (Postfix) with ESMTP id 9D27A8FC16 for ; Sun, 9 Jan 2011 18:38:47 +0000 (UTC) Received: from m5p.com (wonderland.m5p.com [IPv6:2001:418:3fd::19]) by mailhost.m5p.com (8.14.3/8.14.3) with ESMTP id p09IcfI3019712 for ; Sun, 9 Jan 2011 13:38:46 -0500 (EST) (envelope-from george@m5p.com) Received: (from george@localhost) by m5p.com (8.14.4/8.13.7/Submit) id p09Icfdo010086; Sun, 9 Jan 2011 13:38:41 -0500 (EST) Date: Sun, 9 Jan 2011 13:38:41 -0500 (EST) Message-Id: <201101091838.p09Icfdo010086@m5p.com> From: george+freebsd@m5p.com To: freebsd-stable@freebsd.org In-Reply-To: <954019999.13143.1294579897823.JavaMail.root@erie.cs.uoguelph.ca> X-Spam-Score: -0.9 () BAYES_00,J_CHICKENPOX_28 X-Scanned-By: MIMEDefang 2.67 on IPv6:2001:418:3fd::f7 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (mailhost.m5p.com [IPv6:2001:418:3fd::f7]); Sun, 09 Jan 2011 13:38:46 -0500 (EST) Subject: Re; NFS 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: Sun, 09 Jan 2011 18:38:47 -0000 It has been suggested that I move this thread to freebsd-stable. The thread so far (deficient NFS performance in FreeBSD 8): http://lists.freebsd.org/pipermail/freebsd-hackers/2011-January/034006.html I updated my kernel to FreeBSD 8.2-PRERELEASE. This improved my throughput, but still not to the level I got from 7.3-STABLE. Here's an updated table from my original message: Observed bytes per second (dd if=filename of=/dev/null bs=65536): Source machine: mattapan scollay sullivan Destination machine: wonderland/7.3-STABLE 870K 5.2M 1.8M wonderland/8.1-STABLE 496K 690K 420K wonderland/8.2-PRERELEASE 800K 1.2M 447K Furthermore, I was still able to induce the NFS "server not responding" message with 8.2-PRERELEASE. So I applied the patch from Rick Macklem. The throughput did not change, but I haven't seen the NFS "server not responding" message yet. As to an earlier question about NFS options: I'm not setting any, so they are whatever the automounter uses by default. -- George