[snmp] CPU usage per core

import netsnmp

CPU_TYPE   = '.1.3.6.1.2.1.25.3.1.3'

CORE_USAGE = '.1.3.6.1.2.1.25.3.3.1.2.' # +ID

CORE_NAME  = '.1.3.6.1.2.1.25.3.2.1.3.' # +ID

def get_cpu_usage(host,version=2,community='public'):

    s = netsnmp.Session(DestHost=host, Version=version, Community=community)

    vars = netsnmp.VarList(netsnmp.Varbind('.1.3.6.1.2.1.25.3.2.1.1'))

    #count resouces

    resources = s.walk(vars)

    cpu_res = {}

    for res in resources:

        oid = ".1.3.6.1.2.1.25.3.2.1.2.%s" % res

        vars = netsnmp.VarList(netsnmp.Varbind(oid))

        value = s.get(vars)

        #print oid, value

        if value[0] == CPU_TYPE:

            oid = CORE_USAGE + res

            vars = netsnmp.VarList(netsnmp.Varbind(oid))

            value = s.get(vars)

            print "CORE:%s, Usage:%s" % (res, value[0])

            cpu_res[res] = int(value[0])

    return cpu_res

print get_cpu_usage('192.168.1.29')