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Re: Which FS to use ?



On Wed, 17 Sep 2003 15:19:00 +0100
Tom Badran <tb100@doc.ic.ac.uk> wrote:

| On Wednesday 17 Sep 2003 14:47, Shyamal Prasad wrote:
| > What kind of application is it that is "way too slow" with ext2? I use
| > ext3 with an 80G drive and it is never slow. ext2 should've been
| > faster. I can recommend ext3 as a good choice, it works great for me.
| >
| > Perhaps you don't have DMA turned on?
| 
| If you have an application that needs to pull lots of data really fast (using 
| directio) for long periods of time, you really should be using XFS. We tested 
| a load of filesystems where i am working and only xfs got the throuput we 
| needed (~430MB/s off a raid array) whereas the best ext3 and reiser (might 
| not have been reiser4 though) could get was about 350MB/s
| 
| Tom
| 
Uuuhh,
/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.17 seconds =752.94 MB/sec
 Timing buffered disk reads:  64 MB in  1.47 seconds = 43.54 MB/sec
mess-mate



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