From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755485AbYKTOIm (ORCPT ); Thu, 20 Nov 2008 09:08:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754807AbYKTOId (ORCPT ); Thu, 20 Nov 2008 09:08:33 -0500 Received: from smtp3.netcologne.de ([194.8.194.66]:35829 "EHLO smtp3.netcologne.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754794AbYKTOIc (ORCPT ); Thu, 20 Nov 2008 09:08:32 -0500 Date: Thu, 20 Nov 2008 15:08:30 +0100 From: Max Kellermann To: Trond Myklebust Cc: linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org Subject: Re: High load in 2.6.27, NFS / rpcauth_lookup_credcache()? Message-ID: <20081120140830.GA23697@squirrel.roonstrasse.net> Mail-Followup-To: Trond Myklebust , linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org References: <20081022091207.GA12996@squirrel.roonstrasse.net> <20081023123628.GA18549@squirrel.roonstrasse.net> <1224773745.7625.4.camel@localhost> <20081024083913.GA15197@squirrel.roonstrasse.net> <1224871763.22672.33.camel@localhost> <20081027095843.GA10937@squirrel.roonstrasse.net> <1225122503.14242.12.camel@heimdal.trondhjem.org> <20081117123536.GA16539@squirrel.roonstrasse.net> <1227133861.28898.26.camel@heimdal.trondhjem.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1227133861.28898.26.camel@heimdal.trondhjem.org> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2008/11/19 23:31, Trond Myklebust wrote: > Looking at the above, it seems that you're spending an inordinate amount > of time in generic_match too. > Could you see if the following patch helps? That fixes the problem. The first kernel symbol in oprofile is the tg3 network driver at 2%. Max