Re: [Libguestfs] Support for qemu snapshot=on drives in libvirt
On Fri, Oct 05, 2012 at 01:52:46PM +0200, Paolo Bonzini wrote:
Il 05/10/2012 13:40, Richard W.M. Jones ha scritto:
> I'm also concerned about the time is takes to run the external
> 'qemu-img create' command, which is non-trivial in some versions
> of qemu. In libguestfs, every millisecond counts.
qemu-img create is a thin wrapper for bdrv_create that would be done
anyway by QEMU. So there is no difference apart from the cost of
loading the binary.
Right -- that's the point though :-(
Using qemu snapshot=on is free, since we've launched qemu already.
Rich.
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