On Wed, May 14, 2014 at 08:29:30AM +0800, coffeeball wrote:

We manage hypervisors (VMWare ESXi/vCenter, KVM, XEN, Hyper-V) by remote Libvirt API, in our case we need to get the host uptime via the same libvirt interface. Is there a way get this info now for all the aforementioned hypervisor types?

The APIs virConnectGetSysinfo(), virNodeGetInfo() provide host info but it doesn't include the system uptime.

Afraid we don't have any reporting of the "uptime" yet - feel free to report a bug against libvirt asking for this, or if you are C coder we'd accept patches too.

The virNodeGetCPUStats() can returns CPU usage in nanosecond, can we add the user + system + idle + iowait to calculate the system uptime? Looks like the sum value has a huge gap with the real uptime value returned by "uptime" CLI.

Yeah, I'm not sure that's going to be reliable. 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 :|