host/usr/share/xvm-munin-host-config/plugins/xen_cpu

   1 #!/usr/bin/python
   2
   3 from xen.xm.main import SERVER_LEGACY_XMLRPC, SERVER_XEN_API, parseServer
   4 from xen.xend import sxp
   5
   6 serverType, serverURI = parseServer()
   7
   8 if serverType == SERVER_XEN_API:
   9     from xen.xm import XenAPI
  10     server = XenAPI.Session(serverURI)
  11     username, password = parseAuthentication()
  12     server.login_with_password(username, password)
  13     def logout():
  14         try:
  15             server.xenapi.session.logout()
  16         except:
  17             pass
  18     atexit.register(logout)
  19 else:
  20     from xen.util.xmlrpcclient import ServerProxy
  21     server = ServerProxy(serverURI)
  22
  23 import sys
  24
  25 if len(sys.argv) > 1:
  26     cmd = sys.argv[1]
  27 else:
  28     cmd = None
  29
  30 def getDomains():
  31     ret = {}
  32     if serverType == SERVER_XEN_API:
  33         domains = server.xenapu.VM.get_all_records()
  34         metrics = server.xenapi.VM_metrics.get_all_records()
  35         for d in domains.values():
  36             ret[d['uuid'].replace('-', '_')] = {'name': d['name_label'],
  37                                                 'cpu_time': sum(metrics[d['metrics']]['VCPUs_utilisation'].values()),
  38                                                 'domid': d['domid'],
  39                                                 'uuid': d['uuid'],
  40                                                 }
  41         return ret
  42     else:
  43         domains = server.xend.domains_with_state(True, 'all', True)
  44         for d in domains:
  45             ret[sxp.child_value(d, 'uuid', 'NONE').replace('-', '_')] = {'name': sxp.child_value(d, 'name', 'UNKNOWN'),
  46                                                                          'cpu_time': sxp.child_value(d, 'cpu_time', 0.0),
  47                                                                          'domid': sxp.child_value(d, 'domid', -1),
  48                                                                          'uuid': sxp.child_value(d, 'uuid', 'NONE'),
  49                                                                          }
  50         return ret
  51
  52 if cmd == 'config':
  53     print """
  54 graph_title Xen domain CPU usage
  55 graph_args --base 1000 -r --lower-limit 0 --upper-limit 800
  56 graph_vlabel %
  57 graph_scale no
  58 graph_info This graph shows how CPU time is spent by Xen domains.
  59 graph_category system
  60 graph_period second"""
  61     domains = getDomains()
  62     for d in sorted(domains):
  63         name = domains[d]['name']
  64         if name[0:2] == 'd_':
  65             name = 'user domain'
  66         print "%s.label %s" % (d, name)
  67         if domains[d]['domid'] == 0:
  68             print "%s.draw AREA" % d
  69         else:
  70             print "%s.draw STACK" % d
  71         print "%s.max 5000" % d
  72         print "%s.min 0" % d
  73         print "%s.type DERIVE" % d
  74         print "%s.info %s" % (d, domains[d]['uuid'])
  75         print "%s.cdef %s,10000,/" % (d, d)
  76     sys.exit(0)
  77
  78 domains = getDomains()
  79 for d in sorted(domains):
  80     print "%s.value %s" % (d, long(domains[d]['cpu_time']*1000000))