i have done some simple dbench test with ext2, reiserfs and xfs - all
with the same kernel, same partition and run multiple times ... i did
them on one machine (1 p233mmx, 64mb, ide) and the results looked
like i expected them to be: all three filesystems are in about the
same class with xfs the last - but for xfs the io between the dbench
clients are much better balanced (all end close to eachother at the
end of the run) - so - as steve once said - this might account for the
a bit lower xfs results ... ok - then i ran them on another machine
(2 pII333, 128mb, ide) and on this smp machine i now get only about
1/4 of the performance of ext2 and reiserfs with xfs ... it's in this
setup absolutely reproducable (~1.5mb/sec vs. ~5.5mb/sec) ... i'll
try to check this on another machine too if i find the time on monday
- but maybe someone else may try it too - any idea?
t
p.s.: all this is with 2.4.1-XFS from about a week ago and without
any kio stuff on ide with udma2 enabled
--
thomas.graichen@xxxxxxxxxxxxxx
innominate AG
the linux architects
tel: +49-30-308806-13 fax: -77 http://www.innominate.com
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