Re: Optimize RAID0 for max IOPS?

Dear CoolCold,

In message [ref] you wrote:

quoted

So can anybody help answering these questions:

- are there any special options when creating the RAID0 to make it
 perform faster for such a use case?
- are there other tunables, any special MD / LVM / file system /
 read ahead / buffer cache / ... parameters to look for?

XFS is known for it's slow speed on metadata operations like updating
file attributes/removing files..but things gonna change after 2.6.35
where delaylog is used. Citating Dave Chinner :
< dchinner> Indeed, the biggest concurrency limitation has
traditionally been the transaction commit/journalling code, but that's
a lot more scalable now with delayed logging....

So, you may need to benchmark fs part.

Thanks a lot - much appreciated.  The first reply that actually was on
topic...

Best regards,

Wolfgang Denk

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