56 lines
1.3 KiB
Python
Executable File
56 lines
1.3 KiB
Python
Executable File
#! /usr/bin/env python2
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# -*- coding: utf-8 -*-
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import libvirt
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import sys
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import time
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def getNumberOfPhysicalCpus(connection):
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return connection.getInfo()[2]
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def getDomainTotalCpuTime(domain):
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return domain.getCPUStats(True, 0)[0]['cpu_time']
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def getCpuUtilization(domain, numberOfPhysicalCpus):
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prevTime = time.time()
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prevCpuTime = getDomainTotalCpuTime(domain)
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time.sleep(1)
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currTime = time.time()
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currCpuTime = getDomainTotalCpuTime(domain)
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print "Prev time: " + str(prevTime)
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print "Prev cpu time: " + str(prevCpuTime)
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print "Curr time: " + str(currTime)
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print "Curr cpu time: " + str(currCpuTime)
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print "CPU utilization: "
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print ((currCpuTime - prevCpuTime) / ((currTime - prevTime) * 1000000000 * numberOfPhysicalCpus))
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conn = libvirt.openReadOnly(None)
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if conn is None:
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print 'Failed to open connection to the hypervisor'
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sys.exit(1)
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try:
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dom0 = conn.lookupByName("cirros")
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except:
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print 'Failed to find the main domain'
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sys.exit(1)
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numberOfPhysicalCpus = getNumberOfPhysicalCpus(conn)
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print "Host CPUs: " + str(numberOfPhysicalCpus)
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getCpuUtilization(dom0, numberOfPhysicalCpus)
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#print "Domain 0: id %d running %s" % (dom0.ID(), dom0.OSType())
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#print dom0.info()
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#print dom0.getCPUStats(1, 0)
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#print dom0.vcpus()
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#print dom0.vcpuPinInfo(0)
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#print conn.getCPUStats(1, 0)
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