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Re: [linux-lvm] performance tests



Roberto,

creating a striped logical volume with the stripe size equal to the block
size of the filesystem should give you the best performamce presuming that
you don't have some bus bottleneck.


On Wed, Apr 23, 2003 at 06:53:28PM +0200, Roberto Ammendola wrote:
> Hi list,
> I would like to hear some opinions about a configuration: I have a dual 
> Xeon with 2 RAID5 HW controllers, so that from the OS side I have two 
> SCSI disks. I am trying different configurations to see which one has 
> the best performances. The machine will be a file server for a bunch of 
> people.
> The question is: would you use LVM over a SW-RAID0 between the two SCSI 
> disks? Is native LVM striping that better (in terms of performance I mean)?
> Let me know, I'll run bonnie++ meanwhile, but I don't know if it 
> highlights the differences: I should simulate a multiuser stress of the 
> disks. Any advice?
> 
> ciao rob
> 
> -- 
> ______________________________________________________________________
> 
>       Roberto Ammendola    INFN - Roma II - APE group
>  tel: +39-0672594504  email: roberto ammendola roma2 infn it   // \
>       ICQ: 152497874    MSN: ammendola_ro hotmail com          \\_/ //
> __________________________________________   ''-.._.-''-.._.. -(||)(')
>                                                                '''
> 
> 
> 
> _______________________________________________
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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