[pve-devel] Speed up PVE Backup

[Stefan Priebe - Profihost AG]

Am 16.02.2016 um 12:58 schrieb Stefan Priebe - Profihost AG:
> Am 16.02.2016 um 11:55 schrieb Dietmar Maurer:
>>> Is it enough to just change these:
>>
>> The whole backup algorithm is based on 64KB blocksize, so it
>> is not trivial (or impossible?) to change that.
>>
>> Besides, I do not understand why reading 64KB is slow - ceph libraries
>> should have/use a reasonable readahead cache to make it fast?

at least for ceph and also for the i/o limits a block size of 4MB would
be ideal. Anay chance to hack this in?

Stefan