On Mon, 24 Jan 2011, CoolCold wrote:
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.
Some info on XFS benchmark with delaylog here:
http://comments.gmane.org/gmane.comp.file-systems.xfs.general/34379
Justin.
