ceph force writethrough until a flush is detected.
With cache=unsafe, we never send flush.
So we need to tell to ceph
to set rbd_cache_writethrough_until_flush=false in this case.
This speedup a lot qemu-img convert which use cache=unsafe by default
Signed-off-by: Alexandre Derumier
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block/r
On 07/27/2016 05:26 AM, Alexandre Derumier wrote:
ceph force writethrough until a flush is detected.
With cache=unsafe, we never send flush.
So we need to tell to ceph
to set rbd_cache_writethrough_until_flush=false in this case.
This speedup a lot qemu-img convert which use cache=unsafe by defa
