Hi Does Xen (well, dom-U xenified kernel) detect when a dom-U is spinning in idle loop? In other words is Xen scheduling able to tell whether a dom-U is really busy? I thought it might be useful to have a low-priority ''background'' dom-U that scavenged CPU-time when the other dom-U''s were idle. Regards Roland _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> Does Xen (well, dom-U xenified kernel) detect when a dom-U is > spinning in idle loop?Yes -- the domU calls HYPERVISOR_yield.> In other words is Xen scheduling able to tell whether a dom-U > is really busy?Yes.> I thought it might be useful to have a low-priority > ''background'' dom-U that scavenged CPU-time when the other > dom-U''s were idle.You can achieve something akin to this just by setting the scheduler weight parameters accordingly. Ian _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users