[Fedora-xen] Re: IO performance sanity check
Ask Bjørn Hansen wrote:
I've usually avoided putting anything that needed IO performance
on Xen,
but now I had a few applications that'd fit well in Xen but need a
little bit of disk IO. I was surprised just how poorly it works.
My experiences with paravirt Xen have been:
- Fine performance, as long as "normal" file I/O
is being used.
- Bad performance for "low-level" operations like
file system creation
This was with "raw device" based virtual disks. I haven't benchmarked file-
backed virtual disks.
More on my experiences:
http://article.gmane.org/gmane.comp.emulators.xen.user/29483
--
Regards,
Troels Arvin <troels(a)arvin.dk>
http://troels.arvin.dk/