Revision 0105bad3 lib/hypervisor/hv_xen.py
| b/lib/hypervisor/hv_xen.py | ||
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def GetNodeInfo(self): |
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"""Return information about the node. |
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@return: a dict with the following keys (values in MiB): |
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@return: a dict with the following keys (memory values in MiB):
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- memory_total: the total memory size on the node |
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- memory_free: the available memory on the node for instances |
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- memory_dom0: the memory used by the node itself, if available |
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- nr_cpus: total number of CPUs |
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- nr_nodes: in a NUMA system, the number of domains |
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- nr_sockets: the number of physical CPU sockets in the node |
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""" |
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# note: in xen 3, memory has changed to total_memory |
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xmoutput = result.stdout.splitlines() |
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result = {}
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cores_per_socket = threads_per_core = nr_cpus = None |
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for line in xmoutput: |
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splitfields = line.split(":", 1)
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|
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elif key == 'free_memory': |
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result['memory_free'] = int(val) |
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elif key == 'nr_cpus': |
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result['cpu_total'] = int(val) |
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nr_cpus = result['cpu_total'] = int(val) |
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elif key == 'nr_nodes': |
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result['cpu_nodes'] = int(val) |
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elif key == 'cores_per_socket': |
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cores_per_socket = int(val) |
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elif key == 'threads_per_core': |
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threads_per_core = int(val) |
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if (cores_per_socket is not None and |
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threads_per_core is not None and nr_cpus is not None): |
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result['cpu_sockets'] = nr_cpus / (cores_per_socket * threads_per_core) |
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dom0_info = self.GetInstanceInfo("Domain-0")
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if dom0_info is not None: |
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result['memory_dom0'] = dom0_info[2] |
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