[pve-devel] backup ceph high iops and slow

[Dietmar Maurer]

> >>We read 64K blocks, so
> 
> Don't for for backup, but drive-mirror have a "granulary" option to change the
> block size:
> 
>  # @granularity: #optional granularity of the dirty bitmap, default is 64K.
>  #               Must be a power of 2 between 512 and 64M.

Although it would be much easier it read-ahead solve the problem ;-)

Anybody have newest ceph with those read-ahead patches for testing?