On Tue, Jun 30, 2009 at 02:09:17PM -0600, Jerry James wrote:
On Tue, Jun 30, 2009 at 12:31 AM, Dor Laor dlaor@redhat.com wrote:
It might be due to different image caching defaults. Can you grab the current command line of qemu and change -drive file=xxxx,..,cache=writeback and retest?
As far as I can tell, virt-manager doesn't use the -drive option, but just passes the name of the hard disk image as the last command line argument.
I don't think this is correct.
The virt-manager concept seems nice, but I abandoned it after using it for only a short time in F-10 because (a) it didn't give me an easy way to see what options it ultimately passed to qemu-kvm, and (b) it didn't give me a way to fiddle with nonstandard options. It looks like I'm probably going to abandon it again in F-11 after only using it for a short time, for exactly the same reasons.
libvirt isn't just a wrapper around qemu-kvm, it drives half a dozen different virtualization systems, giving you the benefit of abstracting the details of the hypervisor from the management tools. So for that reason we don't support tweaking the qemu command line arbitrarily. However if there are particular features of qemu or KVM that you think we should support, please raise them.
Rich.