Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932236AbWAQSxj (ORCPT ); Tue, 17 Jan 2006 13:53:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932402AbWAQSxi (ORCPT ); Tue, 17 Jan 2006 13:53:38 -0500 Received: from pat.uio.no ([129.240.130.16]:16592 "EHLO pat.uio.no") by vger.kernel.org with ESMTP id S932404AbWAQSxh (ORCPT ); Tue, 17 Jan 2006 13:53:37 -0500 Subject: Re: Kernel 2.6.15.1 + NFS is 4 times slower than FTP!? From: Trond Myklebust To: Justin Piszcz Cc: Alan Cox , Tomasz =?iso-8859-2?Q?K=B3oczko?= , Phil Oester , linux-kernel@vger.kernel.org, apiszcz@lucidpixels.com In-Reply-To: References: <20060117012319.GA22161@linuxace.com> <1137521483.14135.59.camel@localhost.localdomain> <1137523035.7855.91.camel@lade.trondhjem.org> Content-Type: text/plain Date: Tue, 17 Jan 2006 13:53:11 -0500 Message-Id: <1137523991.7855.103.camel@lade.trondhjem.org> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 Content-Transfer-Encoding: 7bit X-UiO-Spam-info: not spam, SpamAssassin (score=-3.076, required 12, autolearn=disabled, AWL 0.88, FORGED_RCVD_HELO 0.05, PLING_QUERY 0.86, RCVD_IN_SORBS_DUL 0.14, UIO_MAIL_IS_INTERNAL -5.00) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 772 Lines: 18 On Tue, 2006-01-17 at 13:38 -0500, Justin Piszcz wrote: > Writing from SRC(A) -> DST(B). > I have not tested reading, but as I recall there were similar speed issues > going the other way too, although I have not tested it recently. How were you testing it? I'm not sure that ftp will actually sync your file to disk (whereas that is pretty much mandatory for an NFS server), so unless you are transferring very large files, you would expect to see a speed difference due to caching of writes by the server. Cheers, Trond - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/