Re: Can dbench be used for benchmarking fs?

[Andreas Dilger]

On Oct 07, 2003  16:42 +0400, E. Gryaznova wrote:
> I use dbench for benchmarking the file systems and some results are
> suspicious for me.
> :
> :
> :
> As the result: the measuring deviation is equal = 23.4062 - 15.7005 =
> 7.7057 or about ~38% from average value.
> 
> So, I have 2 questions :
> 1. Is there a way to avoid such big deviations on measuring a file
> systems throughput and to get more stable results?
> 2. Can dbench be used for benchmarking the file systems and if it is so
> -- what is the predictable error on the measuring?

Dbench is not a good filesystem benchmark, because it deletes all of the
files at the end.  Use something else for the filesystem benchmark - there
are lots of them (bonnie, iozone, mongo, etc).

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/

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