On Wed, Mar 28, 2007 at 03:55:24PM +0100, Daniel P. Berrange wrote: > On Wed, Mar 28, 2007 at 10:45:34AM -0400, Daniel Veillard wrote: > > It would be nice though if each time you look whether the domain is > > defined or not, libvirt could give teh answer directly instead of going > > though the potentially expensive Info call. This would also require > > to double check invalidation of the _virDomain cached data at the > > proper places. > > The virDomainGetInfo is a fast-path call - its either a direct hypercall, > or a hypercall via the proxy - we never make an expensive XenD call unless > they've broken the proxy somehow. I was thinking about the upcoming remote support, and an RPC is expensive for this kind of informations IMHO. Daniel -- Red Hat Virtualization group http://redhat.com/virtualization/ Daniel Veillard | virtualization library http://libvirt.org/ veillard@xxxxxxxxxx | libxml GNOME XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/