Revision 572e52bf lib/hypervisor/hv_fake.py
| b/lib/hypervisor/hv_fake.py | ||
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def GetNodeInfo(self): |
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"""Return information about the node. |
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This is just a wrapper over the base GetLinuxNodeInfo method. |
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@return: a dict with the following keys (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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""" |
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# global ram usage from the xm info command |
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# memory : 3583 |
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# free_memory : 747 |
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# note: in xen 3, memory has changed to total_memory |
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try: |
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fh = file("/proc/meminfo")
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try: |
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data = fh.readlines() |
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finally: |
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fh.close() |
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except IOError, err: |
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raise errors.HypervisorError("Failed to list node info: %s" % err)
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result = {}
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sum_free = 0 |
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for line in data: |
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splitfields = line.split(":", 1)
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if len(splitfields) > 1: |
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key = splitfields[0].strip() |
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val = splitfields[1].strip() |
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if key == 'MemTotal': |
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result['memory_total'] = int(val.split()[0])/1024 |
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elif key in ('MemFree', 'Buffers', 'Cached'):
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sum_free += int(val.split()[0])/1024 |
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elif key == 'Active': |
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result['memory_dom0'] = int(val.split()[0])/1024 |
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result['memory_free'] = sum_free |
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result = self.GetLinuxNodeInfo() |
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# substract running instances |
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all_instances = self.GetAllInstancesInfo() |
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result['memory_free'] -= min(result['memory_free'], |
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sum([row[2] for row in all_instances])) |
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cpu_total = 0 |
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try: |
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fh = open("/proc/cpuinfo")
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try: |
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cpu_total = len(re.findall("(?m)^processor\s*:\s*[0-9]+\s*$",
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fh.read())) |
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finally: |
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fh.close() |
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except EnvironmentError, err: |
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raise errors.HypervisorError("Failed to list node info: %s" % err)
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result['cpu_total'] = cpu_total |
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# FIXME: export correct data here |
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result['cpu_nodes'] = 1 |
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result['cpu_sockets'] = 1 |
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return result |
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@classmethod |
Also available in: Unified diff