From owner-freebsd-current@FreeBSD.ORG Sat Jan 29 05:37:05 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BF50B16A4CF for ; Sat, 29 Jan 2005 05:37:05 +0000 (GMT) Received: from avscan1.sentex.ca (avscan1.sentex.ca [199.212.134.11]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4CB0743D31 for ; Sat, 29 Jan 2005 05:37:05 +0000 (GMT) (envelope-from mike@sentex.net) Received: from localhost (localhost.sentex.ca [127.0.0.1]) by avscan1.sentex.ca (8.12.11/8.12.11) with ESMTP id j0T5b4Yt051663; Sat, 29 Jan 2005 00:37:04 -0500 (EST) (envelope-from mike@sentex.net) Received: from avscan1.sentex.ca ([127.0.0.1]) by localhost (avscan1.sentex.ca [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 51147-07; Sat, 29 Jan 2005 00:37:03 -0500 (EST) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by avscan1.sentex.ca (8.12.11/8.12.11) with ESMTP id j0T5b3a0051622; Sat, 29 Jan 2005 00:37:03 -0500 (EST) (envelope-from mike@sentex.net) Received: from simian.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.12.11/8.12.11) with ESMTP id j0T5auAM078336; Sat, 29 Jan 2005 00:36:57 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <6.2.0.14.0.20050129003215.049f6dd8@64.7.153.2> X-Mailer: QUALCOMM Windows Eudora Version 6.2.0.14 Date: Sat, 29 Jan 2005 00:39:04 -0500 To: Brian Reichert From: Mike Tancsa In-Reply-To: <20050128224412.GK662@numachi.com> References: <6.2.0.14.0.20050128160902.050da3f0@64.7.153.2> <20050128224412.GK662@numachi.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by amavisd-new X-Virus-Scanned: by amavisd-new at avscan1b cc: freebsd-current@freebsd.org Subject: Re: vfs.nfsrv.async broken ? Or pilot error ? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Jan 2005 05:37:05 -0000 At 05:44 PM 28/01/2005, Brian Reichert wrote: > > > > But if I increase the size by 10 times, the process takes more than 100 > > times the amount of time to complete, and sometimes it doesnt complete at > > all > >I've been trying to diagnose some big-files-over-NFS issues myself, >with Solaris clients and a 5.3-R server. Hi, As long as I keep vfs.nfsrv.async=0, I can create large files no problem [ns4-new]# time dd if=/dev/zero of=/mnt/testfile2 bs=1024k count=300 300+0 records in 300+0 records out 314572800 bytes transferred in 84.672246 secs (3715182 bytes/sec) 0.000u 0.675s 1:24.75 0.7% 23+2579k 0+38400io 0pf+0w [ns4-new]# Then, changing the file slightly, [ns4-new]# time dd if=/mnt/testfile2 of=/dev/null bs=1024k 300+1 records in 300+1 records out 314573050 bytes transferred in 7.251998 secs (43377431 bytes/sec) 0.000u 0.522s 0:07.30 7.1% 28+2877k 0+0io 0pf+0w [ns4-new]# I can also run iozone on the nfs mount, but not with async=1 ---Mike