Hi Kobi, I have found a problem with your vdsm implementation of the cpuTune stats. When using vdsClient I see the following error: sudo vdsClient -s 0 getVmStats 359a9045-34e2-40d2-ba5f-ba614421a624 Traceback (most recent call last): File "/usr/share/vdsm/vdsClient.py", line 2668, in <module> code, message = commands[command][0](commandArgs) File "/usr/share/vdsm/vdsClient.py", line 459, in do_getVmStats return self.ExecAndExit(self.s.getVmStats(vmId)) File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__ return self.__send(self.__name, args) File "/usr/lib64/python2.7/xmlrpclib.py", line 1578, in __request verbose=self.__verbose File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request return self.single_request(host, handler, request_body, verbose) File "/usr/lib64/python2.7/xmlrpclib.py", line 1297, in single_request return self.parse_response(response) File "/usr/lib64/python2.7/site-packages/vdsm/vdscli.py", line 41, in wrapped_parse_response return old_parse_response(*args, **kwargs) File "/usr/lib64/python2.7/xmlrpclib.py", line 1473, in parse_response return u.close() File "/usr/lib64/python2.7/xmlrpclib.py", line 793, in close raise Fault(**self._stack[0]) Fault: <Fault 1: "<type 'exceptions.OverflowError'>:long int exceeds XML-RPC limits"> You need to convert Long ints to strings to avoid overflows. -- Adam Litke