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bonnie performance xfs vs. ext2

To: linux-xfs@xxxxxxxxxxx
Subject: bonnie performance xfs vs. ext2
From: Rajagopal Ananthanarayanan <ananth@xxxxxxx>
Date: Thu, 08 Jun 2000 00:15:48 -0700
Sender: owner-linux-xfs@xxxxxxxxxxx
Following are results of running "bonnie" using a file size of 256M.
Tests run on a 2-cpu system with 64M memory.  Measurements taken
for 3 runs each using ext2 and xfs.  For the most part, results of the
tests are virtually identical in using ext2 and xfs, except for:

1. sequential character input is slower in xfs by about 7-8%
2. Block write performance is slower in xfs by about 1-2%
3. XFS seems to use a little bit more cpu for block operations & rewrite.


              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
EXT2      256  3626  99.9  7615 12.0  2932  6.1  3005 89.8 18495 22.7 176.7  3.3
EXT2      256  3632 100.0  7670 12.6  2920  5.9  2998 90.1 18483 22.4 179.6  3.3
EXT2      256  3631 100.0  7679 12.4  2931  6.3  3011 89.7 18478 24.0 187.0  4.2

XFS       256  3633 100.0  7599 12.7  2906  7.4  2782 83.8 18480 27.4 181.7  4.3
XFS       256  3624  99.6  7614 13.8  2968  7.6  2776 83.6 18563 25.7 185.3  3.6
XFS       256  3625  99.7  7539 13.0  3014  7.9  2818 84.8 18557 29.4 183.4  4.9

-- 
--------------------------------------------------------------------------
Rajagopal Ananthanarayanan ("ananth")
Member Technical Staff, SGI.
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