class Monitoring:
"Generic class for monitoring"
def __init__(self):
self.mon = PqosMon()
self.groups = []
def setup_groups(self):
"Sets up monitoring groups. Needs to be implemented by a derived class."
return []
def setup(self):
"Resets monitoring and configures (starts) monitoring groups."
self.mon.reset()
self.groups = self.setup_groups()
def update(self):
"Updates values for monitored events."
self.mon.poll(self.groups)
def print_data(self):
"""Prints current values for monitored events. Needs to be implemented
by a derived class."""
pass
def stop(self):
"Stops monitoring."
for group in self.groups:
group.stop()
def test_start(self, lib):
"Tests start() method."
values = CPqosEventValues(llc=123, mbm_local=456, mbm_total=789,
mbm_remote=120, mbm_local_delta=456,
mbm_total_delta=789, mbm_remote_delta=120)
group_mock = CPqosMonData(values=values)
def pqos_mon_start_mock(num_cores, cores_arr, event, _context,
group_ref):
"Mock pqos_mon_start()."
self.assertEqual(num_cores, 2)
self.assertEqual(cores_arr[0], 1)
self.assertEqual(cores_arr[1], 3)
exp_event = CPqosMonitor.PQOS_MON_EVENT_L3_OCCUP
exp_event |= CPqosMonitor.PQOS_MON_EVENT_LMEM_BW
self.assertEqual(event, exp_event)
ctypes.memmove(group_ref, ctypes.addressof(group_mock),
ctypes.sizeof(group_mock))
return 0
func_mock = MagicMock(side_effect=pqos_mon_start_mock)
lib.pqos_mon_start = func_mock
mon = PqosMon()
group = mon.start([1, 3], ['l3_occup', 'lmem_bw'])
lib.pqos_mon_start.assert_called_once()
self.assertEqual(group.values.llc, 123)
self.assertEqual(group.values.mbm_local, 456)
def test_poll(self, lib):
"Tests poll() method."
values = CPqosEventValues(llc=678, mbm_local=653, mbm_total=721,
mbm_remote=68, mbm_local_delta=653,
mbm_total_delta=721, mbm_remote_delta=68,
ipc=0.98, llc_misses=10, llc_misses_delta=10)
event = CPqosMonitor.PQOS_MON_EVENT_L3_OCCUP
group = CPqosMonData(event=event, values=values)
values2 = CPqosEventValues(llc=998, mbm_local=653, mbm_total=721,
mbm_remote=68, mbm_local_delta=653,
mbm_total_delta=721, mbm_remote_delta=68,
ipc=0.98, llc_misses=10, llc_misses_delta=10)
group_mock2 = CPqosMonData(values=values2)
def pqos_mon_poll_mock(groups_arr, num_groups):
"Mock pqos_mon_poll()."
self.assertEqual(num_groups, 1)
ctypes.memmove(groups_arr[0], ctypes.addressof(group_mock2),
ctypes.sizeof(group_mock2))
return 0
func_mock = MagicMock(side_effect=pqos_mon_poll_mock)
lib.pqos_mon_poll = func_mock
mon = PqosMon()
mon.poll([group])
lib.pqos_mon_poll.assert_called_once()
self.assertEqual(group.values.llc, 998)
def test_start_pids(self, lib):
"Tests start_pids() method."
values = CPqosEventValues(llc=678, mbm_local=653, mbm_total=721,
mbm_remote=68, mbm_local_delta=653,
mbm_total_delta=721, mbm_remote_delta=68,
ipc=0.98, llc_misses=10, llc_misses_delta=10)
group_mock = CPqosMonData(values=values)
def pqos_mon_start_pids_mock(num_pids, pids_arr, event, _context,
group_ref):
"Mock pqos_mon_start_pids()."
self.assertEqual(num_pids, 2)
self.assertEqual(pids_arr[0], 1286)
self.assertEqual(pids_arr[1], 2251)
exp_event = CPqosMonitor.PQOS_MON_EVENT_L3_OCCUP
exp_event |= CPqosMonitor.PQOS_MON_EVENT_TMEM_BW
self.assertEqual(event, exp_event)
ctypes.memmove(group_ref, ctypes.addressof(group_mock),
ctypes.sizeof(group_mock))
return 0
func_mock = MagicMock(side_effect=pqos_mon_start_pids_mock)
lib.pqos_mon_start_pids = func_mock
mon = PqosMon()
group = mon.start_pids([1286, 2251], ['l3_occup', 'tmem_bw'])
lib.pqos_mon_start_pids.assert_called_once()
self.assertEqual(group.values.llc, 678)
self.assertEqual(group.values.mbm_local, 653)
self.assertAlmostEqual(group.values.ipc, 0.98, places=5)
def test_reset(self, lib):
"Tests reset() method."
# pylint: disable=no-self-use
def pqos_mon_reset_mock():
"Mock pqos_mon_reset()."
return 0
func_mock = MagicMock(side_effect=pqos_mon_reset_mock)
lib.pqos_mon_reset = func_mock
mon = PqosMon()
mon.reset()
lib.pqos_mon_reset.assert_called_once()
def test_assoc_get(self, lib):
"Tests assoc_get() method."
def pqos_mon_assoc_get_mock(core, rmid_ref):
"Mock pqos_mon_assoc_get()."
self.assertEqual(core, 3)
ctypes_ref_set_uint(rmid_ref, 7)
return 0
func_mock = MagicMock(side_effect=pqos_mon_assoc_get_mock)
lib.pqos_mon_assoc_get = func_mock
mon = PqosMon()
rmid = mon.assoc_get(3)
self.assertEqual(rmid, 7)
lib.pqos_mon_assoc_get.assert_called_once()
def __init__(self):
self.mon = PqosMon()
self.groups = []