From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755780Ab2CJDwJ (ORCPT ); Fri, 9 Mar 2012 22:52:09 -0500 Received: from li9-11.members.linode.com ([67.18.176.11]:34479 "EHLO test.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753630Ab2CJDwG (ORCPT ); Fri, 9 Mar 2012 22:52:06 -0500 Date: Fri, 9 Mar 2012 22:52:02 -0500 From: "Ted Ts'o" To: Jacek Luczak Cc: linux-ext4@vger.kernel.org, linux-fsdevel , LKML , linux-btrfs@vger.kernel.org Subject: Re: getdents - ext4 vs btrfs performance Message-ID: <20120310035202.GA5652@thunk.org> Mail-Followup-To: Ted Ts'o , Jacek Luczak , linux-ext4@vger.kernel.org, linux-fsdevel , LKML , linux-btrfs@vger.kernel.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on test.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hey Jacek, I'm curious parameters of the set of directories on your production server. On an ext4 file system, assuming you've copied the directories over, what are the result of this command pipeline when you are cd'ed into the top of the directory hierarchy of interest (your svn tree, as I recall)? find . -type d -ls | awk '{print $7}' | sort -n | uniq -c I'm just curious what the distribution of directories sizes are in practice for your use case... Thanks, - Ted