Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750723AbVKMVvO (ORCPT ); Sun, 13 Nov 2005 16:51:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750724AbVKMVvO (ORCPT ); Sun, 13 Nov 2005 16:51:14 -0500 Received: from sp-260-1.net4.netcentrix.net ([4.21.254.118]:42244 "EHLO asmodeus.mcnaught.org") by vger.kernel.org with ESMTP id S1750723AbVKMVvM (ORCPT ); Sun, 13 Nov 2005 16:51:12 -0500 To: jmerkey Cc: Nikita Danilov , Linux Kernel Mailing List Subject: Re: Severe VFS Performance Issues 2.6 with > 95000 directory entries References: <4376B787.9000108@soleranetworks.com> <17271.13688.298525.23645@gargle.gargle.HOWL> <4377A999.7090305@soleranetworks.com> From: Douglas McNaught Date: Sun, 13 Nov 2005 16:50:56 -0500 In-Reply-To: <4377A999.7090305@soleranetworks.com> (jmerkey@soleranetworks.com's message of "Sun, 13 Nov 2005 14:01:13 -0700") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (darwin) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 869 Lines: 26 jmerkey writes: > Nikita Danilov wrote: > >>Jeff V. Merkey writes: >> > > The subject line speaks for itself. This is using standard VFS >> readdir > and lookup calls through the VFSwith ftp. Very poor. >> >>Reiser4 works fine with 100M entries in a directory, so VFS is not a >>bottleneck here. >> >> > > how about with ftp running on top? Try running FTP in directory with > 100M entries. See how long it takes to return the data to > the remote client for a dir listing. What filesystem are you using? If it's ext3 without dirindex turned on, that would definitely explain it. -Doug - 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/