On Wed, Oct 1, 2014 at 5:24 AM, Andrei Mikhailovsky <[email protected]> wrote:
> Timur,
>
> As far as I know, the latest master has a number of improvements for ssd
> disks. If you check the mailing list discussion from a couple of weeks back,
> you can see that the latest stable firefly is not that well optimised for
> ssd drives and IO is limited. However changes are being made to address
> that.
>
> I am well surprised that you can get 10K IOps as in my tests I was not
> getting over 3K IOPs on the ssd disks which are capable of doing 90K IOps.
>
> P.S. does anyone know if the ssd optimisation code will be added to the next
> maintenance release of firefly?

Not a chance. The changes enabling that improved throughput are very
invasive and sprinkled all over the OSD; they aren't the sort of thing
that one does backport or that one could put on top of a stable
release for any meaningful definition of "stable". :)
-Greg
Software Engineer #42 @ http://inktank.com | http://ceph.com
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