From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 13 Jan 2003 10:32:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 13 Jan 2003 10:32:51 -0500 Received: from main.gmane.org ([80.91.224.249]:5052 "EHLO main.gmane.org") by vger.kernel.org with ESMTP id ; Mon, 13 Jan 2003 10:32:50 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org Path: not-for-mail From: Lars Magne Ingebrigtsen Subject: Performance problems with NFS under 2.4.20 Date: Mon, 13 Jan 2003 16:35:42 +0100 Organization: Programmerer Ingebrigtsen Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Complaints-To: usenet@main.gmane.org Mail-Copies-To: never X-Now-Playing: Cocteau Twins's _Four-Calendar =?iso-8859-1?q?Caf=E9=5F:?= "Pur" User-Agent: Gnus/5.090013 (Oort Gnus v0.13) Emacs/21.2.50 (i686-pc-linux-gnu) Cancel-Lock: sha1:tRvdx9R556VQsiaT1Yc+VdmPQso= Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Upgrading from 2.2.20, I'm seeing vastly increased network traffic, and after poking around a bit, I find that all calls to open() on files on NFS-mounted partitions generates one UDP packet. Switching on NFS debugging, and then saying $ cat file $ cat file shows me this: Jan 13 16:27:23 litos kernel: NFS: refresh_inode(b/876609548 ct=1 info=0x2) Jan 13 16:27:23 litos kernel: nfs: read(//file, 4096@0) Jan 13 16:27:23 litos kernel: nfs: read(//file, 4096@17) Jan 13 16:27:23 litos kernel: nfs: flush(b/876609548) Jan 13 16:27:23 litos kernel: NFS: dentry_delete(//file, 0) Jan 13 16:27:24 litos kernel: NFS: refresh_inode(b/876609548 ct=1 info=0x2) Jan 13 16:27:24 litos kernel: nfs: read(//file, 4096@0) Jan 13 16:27:24 litos kernel: nfs: read(//file, 4096@17) Jan 13 16:27:24 litos kernel: nfs: flush(b/876609548) Jan 13 16:27:24 litos kernel: NFS: dentry_delete(//file, 0) The partition is mounted with just $ mount server:/db /db Adding a "-o actimeo=100" makes no difference. Is this supposed 1) to be this way, or 2) a bug, or 3) a misconfiguration on my part? -- (domestic pets only, the antidote for overdose, milk.) larsi@gnus.org * Lars Magne Ingebrigtsen