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core3 move: class QubesHost

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This commit is contained in:
Wojtek Porczyk 2014-11-17 17:07:08 +01:00
parent c3dd13c0ab
commit 778571fe8d
2 changed files with 61 additions and 56 deletions
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56
core/qubes.py
View File

@ -127,62 +127,6 @@ qubes_max_netid = 254
##########################################
class QubesHost(object):
def __init__(self):
(model, memory, cpus, mhz, nodes, socket, cores, threads) = vmm.libvirt_conn.getInfo()
self._total_mem = long(memory)*1024
self._no_cpus = cpus
# print "QubesHost: total_mem = {0}B".format (self.xen_total_mem)
# print "QubesHost: free_mem = {0}".format (self.get_free_xen_memory())
# print "QubesHost: total_cpus = {0}".format (self.xen_no_cpus)
@property
def memory_total(self):
return self._total_mem
@property
def no_cpus(self):
return self._no_cpus
# TODO
def measure_cpu_usage(self, qvmc, previous=None, previous_time = None,
wait_time=1):
"""measure cpu usage for all domains at once"""
if previous is None:
previous_time = time.time()
previous = {}
for vm in qvmc.values():
if not vm.is_running():
continue
cputime = vm.get_cputime()
previous[vm.xid] = {}
previous[vm.xid]['cpu_time'] = (
cputime / vm.vcpus)
previous[vm.xid]['cpu_usage'] = 0
time.sleep(wait_time)
current_time = time.time()
current = {}
for vm in qvmc.values():
if not vm.is_running():
continue
cputime = vm.get_cputime()
current[vm.xid] = {}
current[vm.xid]['cpu_time'] = (
cputime / max(vm.vcpus, 1))
if vm.xid in previous.keys():
current[vm.xid]['cpu_usage'] = (
float(current[vm.xid]['cpu_time'] -
previous[vm.xid]['cpu_time']) /
long(1000**3) / (current_time-previous_time) * 100)
if current[vm.xid]['cpu_usage'] < 0:
# VM has been rebooted
current[vm.xid]['cpu_usage'] = 0
else:
current[vm.xid]['cpu_usage'] = 0
return (current_time, current)
class QubesVmLabel(object):
def __init__(self, index, color, name, dispvm=False):

61
qubes/__init__.py
View File

@ -76,3 +76,64 @@ class QubesVMMConnection(object):
vmm = QubesVMMConnection()
class QubesHost(object):
'''Basic information about host machine'''
def __init__(self):
(model, memory, cpus, mhz, nodes, socket, cores, threads) = vmm.libvirt_conn.getInfo()
self._total_mem = long(memory)*1024
self._no_cpus = cpus
# print "QubesHost: total_mem = {0}B".format (self.xen_total_mem)
# print "QubesHost: free_mem = {0}".format (self.get_free_xen_memory())
# print "QubesHost: total_cpus = {0}".format (self.xen_no_cpus)
@property
def memory_total(self):
'''Total memory, in bytes'''
return self._total_mem
@property
def no_cpus(self):
'''Noumber of CPUs'''
return self._no_cpus
# TODO
def get_free_xen_memory(self):
ret = self.physinfo['free_memory']
return long(ret)
# TODO
def measure_cpu_usage(self, previous=None, previous_time = None,
wait_time=1):
"""measure cpu usage for all domains at once"""
if previous is None:
previous_time = time.time()
previous = {}
info = vmm.xc.domain_getinfo(0, qubes_max_qid)
for vm in info:
previous[vm['domid']] = {}
previous[vm['domid']]['cpu_time'] = (
vm['cpu_time'] / vm['online_vcpus'])
previous[vm['domid']]['cpu_usage'] = 0
time.sleep(wait_time)
current_time = time.time()
current = {}
info = vmm.xc.domain_getinfo(0, qubes_max_qid)
for vm in info:
current[vm['domid']] = {}
current[vm['domid']]['cpu_time'] = (
vm['cpu_time'] / max(vm['online_vcpus'], 1))
if vm['domid'] in previous.keys():
current[vm['domid']]['cpu_usage'] = (
float(current[vm['domid']]['cpu_time'] -
previous[vm['domid']]['cpu_time']) /
long(1000**3) / (current_time-previous_time) * 100)
if current[vm['domid']]['cpu_usage'] < 0:
# VM has been rebooted
current[vm['domid']]['cpu_usage'] = 0
else:
current[vm['domid']]['cpu_usage'] = 0
return (current_time, current)