Re: file system and raid performance

[Mario Weilguni <mweilguni@xxxxxxxx>]

Mark Kirkwood schrieb:
> Mark Kirkwood wrote:
> > You are right, it does (I may be recalling performance from my other 
> > machine that has a 3Ware card - this was a couple of years ago...) 
> > Anyway, I'm thinking for the Hardware raid tests they may need to be 
> > specified.
>
> FWIW - of course this somewhat academic given that the single disk xfs 
> test failed! I'm puzzled - having a Gentoo system of similar 
> configuration (2.6.25-gentoo-r6) and running the fio tests a little 
> modified for my config (2 cpu PIII 2G RAM with 4x ATA disks RAID0 and 
> all xfs filesystems - I changed sizes of files to 4G and no. processes 
> to 4) all tests that failed on Marks HP work on my Supermicro P2TDER + 
> Promise TX4000. In fact the performance is pretty reasonable on the 
> old girl as well (seq read is 142Mb/s and the random read/write is 
> 12.7/12.0 Mb/s).
>
> I certainly would like to see some more info on why the xfs tests were 
> failing - as on most systems I've encountered xfs is a great performer.
>
> regards
>
> Mark
I can second this, we use XFS on nearly all our database servers, and 
never encountered the problems mentioned.