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.
Paolo