From owner-freebsd-performance@FreeBSD.ORG Tue Jun 10 15:27:38 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 94D2D37B401 for ; Tue, 10 Jun 2003 15:27:38 -0700 (PDT) Received: from mta1.adelphia.net (mta1.adelphia.net [64.8.50.175]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9392943F75 for ; Tue, 10 Jun 2003 15:27:37 -0700 (PDT) (envelope-from Support@Netflag.Net) Received: from nfn2.Netflag.Net ([68.69.240.78]) by mta5.adelphia.net (InterMail vM.5.01.05.32 201-253-122-126-132-20030307) with ESMTP id <20030610222610.ETPS1551.mta5.adelphia.net@nfn2.Netflag.Net>; Tue, 10 Jun 2003 18:26:10 -0400 Message-Id: <5.2.0.9.2.20030610152538.00b48be0@pop.dc3.adelphia.net> X-Sender: pedramn@pop.dc3.adelphia.net X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Tue, 10 Jun 2003 15:25:49 -0700 To: Jason Stone , From: Pedram Nimreezi In-Reply-To: <20030610150502.H14379-100000@walter> References: <3EE595D2.B223CA19@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Mailman-Approved-At: Tue, 10 Jun 2003 15:28:38 -0700 Subject: Re: Slow disk write speeds over network X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jun 2003 22:27:38 -0000 I'd venture to say NFS generally sucks At 03:23 PM 6/10/2003 -0700, Jason Stone wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > > > > You haven't said if you were using UDP or TCP for the mounts; you > > should definitely use TCP with FreeBSD NFS servers; it's also just > > generally a good idea, since UDP frags act as a fixed non-sliding > > window: NFS over UDP sucks. > >Huh. I thought that the conventional wisdom was that on a local network >with no packet loss (and therefore no re-transmission penalties), udp was >way faster because the overhead was so much less. > >Sorry if this seems like a pretty basic question, but can you explain >this? > > > -Jason > > -------------------------------------------------------------------------- > Freud himself was a bit of a cold fish, and one cannot avoid the suspicion > that he was insufficiently fondled when he was an infant. > -- Ashley Montagu >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.2.1 (FreeBSD) >Comment: See https://private.idealab.com/public/jason/jason.gpg > >iD8DBQE+5lpgswXMWWtptckRAqIUAKCQxIoFOoYuqhOQ5vF9JNwbTe0kbQCghJVe >HblPYP54wIyhZVGFwqrDe30= >=kbba >-----END PGP SIGNATURE----- > >_______________________________________________ >freebsd-performance@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-performance >To unsubscribe, send any mail to >"freebsd-performance-unsubscribe@freebsd.org"