Hi,
Something in the back of my mind keeps saying that there were plans to
implement read caching in librbd, but I haven't been able to find any
reference about that.
In the tracker however I wasn't able to find anything, so it has to be me.
Any plans or ideas on this? A simple idea was that librbd could use a
mmap where it caches RADOS objects and purges them on a write.
This cache could then live on an SSD on a hypervisor where it could
speed up read operations for Virtual Machines in OpenStack or CloudStack
envs. Something like FS-Cache for librbd.
--
Wido den Hollander
42on B.V.
Phone: +31 (0)20 700 9902
Skype: contact42on
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