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authorGuido G√ľnther <agx@sigxcpu.org>2008-10-21 18:12:59 +0200
committerGuido Guenther <agx@sigxcpu.org>2008-10-21 18:12:59 +0200
commitf5ead05a9faba85618401b4f09c216addf9e354d (patch)
tree222856352a5390b2be0138b8cc7b8bc2e97fcc6a
parent27b67971e7ebebd0b9ddc0ab8d4ca9c9b6ca52aa (diff)
add cputime plugin
-rw-r--r--libvirt-cputime76
1 files changed, 76 insertions, 0 deletions
diff --git a/libvirt-cputime b/libvirt-cputime
new file mode 100644
index 0000000..011a115
--- /dev/null
+++ b/libvirt-cputime
@@ -0,0 +1,76 @@
+#!/usr/bin/python
+# vim: set fileencoding=utf-8 :
+#
+# Munin plugin to show the percent of cputime of libvirt managed virtual
+# machines
+#
+# Copyright 2008 Guido Guenther <agx@sigxcpu.org>
+#
+# depends: python-libvirt
+#
+# If you don't want to use the default uri use:
+#
+# [libvirt-*]
+# env.uri qemu:///system
+#
+# in your plugin configuration
+
+import re, sys, os
+import libvirt
+
+def canon(name):
+ return re.sub(r"[^a-zA-Z0-9_]", "_", name)
+
+def print_config(uri):
+ """print the plugin config, determine the domains"""
+
+ print """graph_title Virtual Domain Cpu Time
+graph_vlabel CPU Time percentage
+graph_category Virtual Machines
+graph_info This graph shows the cpu time percentage of each virtual machine
+graph_args --base 1000 -l 0"""
+
+ conn = libvirt.openReadOnly(uri)
+ ids = conn.listDomainsID()
+ for id in ids:
+ dom = conn.lookupByID(id)
+ name = dom.name()
+ print "%s_cputime.label %s" % (canon(name), name)
+ print "%s_cputime.type DERIVE" % canon(name)
+ print "%s_cputime.min 0" % canon(name)
+
+
+def fetch_values(uri):
+ conn = libvirt.openReadOnly(uri)
+ ids = conn.listDomainsID()
+
+ processors = float(conn.getInfo()[2])
+ for id in ids:
+ dom = conn.lookupByID(id)
+ name = dom.name()
+ cputime = float(dom.info()[4])
+ cputime_percentage = 1.0e-7 * cputime / processors
+ print "%s_cputime.value %.0f" % (canon(name), cputime_percentage)
+
+
+def main(sys):
+ uri = os.getenv("uri")
+
+ if len(sys) > 1:
+ if sys[1] in [ 'autoconf', 'detect' ]:
+ if libvirt.openReadOnly(uri):
+ print "yes"
+ return 0
+ else:
+ print "no"
+ return 1
+ elif sys[1] == 'config':
+ print_config(uri)
+ return 0
+ fetch_values(uri)
+ return 0
+
+if __name__ == "__main__":
+ sys.exit(main(sys.argv))
+
+# vim:et:ts=4:sw=4: