def __init__(self):
threading.Thread.__init__(self)
self.setDaemon(True)
self.xc = xc()
self.lock = threading.Lock()
# tracks the last polled statistics
self._domain_vcpus = {}
self._domain_vifs = {}
self._domain_vbds = {}
self.pifs = {}
self.ovs = {}
# instantaneous statistics
self._domain_vcpus_util = {}
self._domain_vifs_util = {}
self._domain_vifs_stat = {}
self._domain_vbds_util = {}
self.pifs_util = {}
self.ovs_util = {}
self.pre_disk_stat = []
self.cur_disk_stat = []
self.host_disk_io_rate = []
def getshadowmem(vm):
"Balloon down domain0 to create free memory for shadow paging."
maxmem = int(vm.dom['maxmem'])
shadow = int(vm.dom['shadow_memory'])
vcpus = int(vm.dom['vcpus'])
# from XendDomainInfo.checkLiveMigrateMemory:
# 1MB per vcpu plus 4Kib/Mib of RAM. This is higher than
# the minimum that Xen would allocate if no value were given.
shadowneeded = vcpus * 1024 + maxmem * 4 - shadow * 1024
physinfo = xc().physinfo()
freemem = int(physinfo['free_memory'])
needed = shadowneeded - freemem
if needed > 0:
print "Freeing %d kB for shadow mode" % needed
dom0cur = osdep.lookup_balloon_stat('current')
# target is in MB, not KB
target = (dom0cur - needed) / 1024
server.xend.domain.setMemoryTarget(0, target)
def getshadowmem(vm):
"Balloon down domain0 to create free memory for shadow paging."
maxmem = int(vm.dom['maxmem'])
shadow = int(vm.dom['shadow_memory'])
vcpus = int(vm.dom['vcpus'])
# from XendDomainInfo.checkLiveMigrateMemory:
# 1MB per vcpu plus 4Kib/Mib of RAM. This is higher than
# the minimum that Xen would allocate if no value were given.
shadowneeded = vcpus * 1024 + maxmem * 4 - shadow * 1024
physinfo = xc().physinfo()
freemem = int(physinfo['free_memory'])
needed = shadowneeded - freemem
if needed > 0:
print "Freeing %d kB for shadow mode" % needed
dom0cur = osdep.lookup_balloon_stat('current')
# target is in MB, not KB
target = (dom0cur - needed) / 1024
server.xend.domain.setMemoryTarget(0, target)
def __init__(self):
threading.Thread.__init__(self)
self.setDaemon(True)
self.xc = xc()
self.lock = threading.Lock()
# tracks the last polled statistics
self._domain_vcpus = {}
self._domain_vifs = {}
self._domain_vbds = {}
self.pifs = {}
# instantaneous statistics
self._domain_vcpus_util = {}
self._domain_vifs_util = {}
self._domain_vifs_stat = {}
self._domain_vbds_util = {}
self.pifs_util = {}
###
# XEN CLEAN INSTALLER
# Hardware discovery tools
#
# written by Andrew Peace
import constants
import xelogging
import util
import re
import os.path
import xen.lowlevel.xc as xc
XC = xc.xc()
PHYSINFO = XC.physinfo()
XENINFO = XC.xeninfo()
################################################################################
# Functions to get characteristics of the host. Can work in a VM too, to aid
# with developer testing.
def VTSupportEnabled():
""" Checks if VT support is present. Uses /sys/hypervisor to do so,
expecting a single line in this file with a space separated list of
capabilities. """
f = open(constants.HYPERVISOR_CAPS_FILE, 'r')
caps = ""
try:
print "===domInfo===" dump(domInfo) cpus = domInfo.getCpus() print "===cpus===" dump(cpus) vms = xendDomainObj.get_all_vms() print "==all vms==" dump(vms) print "==dom0==" dom0 = vms[0] dump(dom0.info['vcpus_params']) xcobj = xc.xc() print "===xeninfo===" dump(xcobj.xeninfo()) print "===domain_getinfo===" dump(xcobj.domain_getinfo()) print "===vcpu_getinfo===" dump(xcobj.vcpu_getinfo(0)) exit(0) print "===physinfo===" dump(xcobj.physinfo()) print "===topologyinfo===" dump(xcobj.topologyinfo()) print "===cpupool_getinfo==="