Re: [Qemu-devel] [PATCH v4 3/6] add backup related monitor commands

[Dietmar Maurer]

> > 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.

You can make that as complex as you want. I simply do not need that.