Re: [Libvir] Re: [PATCH] Python bindings now generate exceptions for libvirt errors (third version)

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.