From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265517AbUH0Ojo (ORCPT ); Fri, 27 Aug 2004 10:39:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265521AbUH0Ojn (ORCPT ); Fri, 27 Aug 2004 10:39:43 -0400 Received: from lucidpixels.com ([66.45.37.187]:7891 "HELO lucidpixels.com") by vger.kernel.org with SMTP id S265517AbUH0Ojl (ORCPT ); Fri, 27 Aug 2004 10:39:41 -0400 Date: Fri, 27 Aug 2004 10:39:35 -0400 (EDT) From: Justin Piszcz X-X-Sender: jpiszcz@p500 To: linux-kernel@vger.kernel.org Subject: A few filesystem benchmarks w/ReiserFS4 vs Other Filesystems Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Are balanced b-trees better for removing many files over dancing onces? See rm -rf benchmark. # -------------------------------------------------------------------- # Filesystems to test: # -------------------------------------------------------------------- # Each file system was created with fdisk to be +1024MB. # -------------------------------------------------------------------- # With default initilization commands: mkfs.fs /dev/hdb[1-7] # -------------------------------------------------------------------- # Filesystem Size Used Avail Use% Mounted on /dev/hdb1 962M 20K 913M 1% /fs/ext2 /dev/hdb2 962M 17M 897M 2% /fs/ext3 /dev/hdb3 977M 33M 945M 4% /fs/reiser3 /dev/hdb5 929M 144K 929M 1% /fs/reiser4 /dev/hdb6 973M 256K 973M 1% /fs/jfs /dev/hdb7 973M 144K 972M 1% /fs/xfs # -------------------------------------------------------------------- # Untar the Linux 2.6.8.1 tarball on each file system. # -------------------------------------------------------------------- # ext2 | 46.88 sec @ 10% cpu ext3 | 44.44 sec @ 12% cpu jfs | 57.36 sec @ 15% cpu rs3 | 37.03 sec @ 23% cpu rs4 | 27.42 sec @ 42% cpu xfs | 49.74 sec @ 17% cpu # -------------------------------------------------------------------- # Execute rm -rf linux-2.6.8.1 on each file system. # -------------------------------------------------------------------- # ext2 | 10.26 sec @ 22% cpu ext3 | 10.02 sec @ 25% cpu jfs | 26.67 sec @ 27% cpu rs3 | 03.22 sec @ 74% cpu rs4 | 25.58 sec @ 50% cpu <- What happened to reiserfs4 here? xfs | 12.51 sec @ 47% cpu # -------------------------------------------------------------------- # Create a 500MB file with dd to each filesystem with 1MB blocks. # -------------------------------------------------------------------- # ext2 | 15.72 sec @ 26% cpu ext3 | 17.04 sec @ 31% cpu jfs | 29.57 sec @ 25% cpu rs3 | 15.21 sec @ 27% cpu rs4 | 23.96 sec @ 23% cpu <- What happened to reiserfs4 here? xfs | 19.07 sec @ 29% cpu