Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 18 Apr 2001 21:12:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 18 Apr 2001 21:12:10 -0400 Received: from RAVEL.CODA.CS.CMU.EDU ([128.2.222.215]:54157 "EHLO ravel.coda.cs.cmu.edu") by vger.kernel.org with ESMTP id ; Wed, 18 Apr 2001 21:11:54 -0400 Date: Wed, 18 Apr 2001 21:11:40 -0400 To: Daniel Phillips Cc: linux-kernel@vger.kernel.org, adilger@turbolinux.com, ext2-devel@lists.sourceforge.net Subject: Re: Ext2 Directory Index - Delete Performance Message-ID: <20010418211139.A11833@cs.cmu.edu> Mail-Followup-To: Daniel Phillips , linux-kernel@vger.kernel.org, adilger@turbolinux.com, ext2-devel@lists.sourceforge.net In-Reply-To: <20010419002757Z92249-1659+3@humbolt.nl.linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.17i In-Reply-To: <20010419002757Z92249-1659+3@humbolt.nl.linux.org>; from phillips@nl.linux.org on Thu, Apr 19, 2001 at 02:27:48AM +0200 From: Jan Harkes Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 19, 2001 at 02:27:48AM +0200, Daniel Phillips wrote: > more memory. If you have enough memory, the inode cache won't thrash, > and even when it does, it does so gracefully - performance falls off > nice and slowly. For example, 250 Meg of inode cache will handle 2 > million inodes with no thrashing at all. What inode cache are you talking about? According to the slabinfo output on my machine every inode takes up 480 bytes in the inode_cache slab. So 250MB is only able to hold about half a million inodes in memory. Jan - 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/