On Wed, Feb 22, 2012 at 12:36:00PM +0530, Pankaj Rawat wrote: > Hi all > > > > The cluster -size increase write performance when the qcow2 image is not > expanded , surely with increase in cluster_size the disk space used > increases but that is not my concern. > > > > Can anyone tell what is the effect of cluster size on read and write > performance on qcow2 image after expantion? Can you send this query to qemu-devel instead - they'll likely be able to give you a more accurate answer than folks here, since they are more familiar with these aspects of Qcow2 Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list