Am 06.03.2013 um 15:42 hat Dietmar Maurer geschrieben: > > > > Maybe you'd better use a different output format that doesn't > > > > restrict you to 64k writes. > > > > > > The output format is not really the restriction. The problem is that > > > an additional IPC layer add overhead, an d I do not want that (because it > > > is > > totally unnecessary). > > > > I missed the reason why you cannot increase the block size. > > When we run backup, we need to read such block on every write from the guest. > So if we increase block size we get additional delays.
How about variable block sizes? I mean this is a stream format that has a header for each block anyway. Include a size there and be done. Kevin
