def test_one_rxq(self):
# retrieve pmd object.
pmd = self.pmd_map[self.core_id]
# one dummy port is required for this test.
port_name = 'virtport'
# create port class of name 'virtport'.
dataif.make_dataif_port(port_name)
# add port object into pmd.
fx_port = pmd.add_port(port_name)
fx_port.numa_id = pmd.numa_id
# add a dummy rxq into port.
fx_rxq = fx_port.add_rxq(0)
# add some cpu consumption for this rxq.
for i in range(0, config.ncd_samples_max):
fx_rxq.cpu_cyc[i] = (1000 + (100 * i))
dataif.update_pmd_load(self.pmd_map)
variance_value = dataif.pmd_load_variance(self.pmd_map)
self.assertEqual(variance_value, 0)
# del port object from pmd.
pmd.del_port(port_name)
def test_one_rxq_rnuma(self):
# set different numa for pmds
pmd1 = self.pmd_map[self.core1_id]
pmd2 = self.pmd_map[self.core2_id]
pmd1.numa_id = 0
pmd2.numa_id = 1
fx_2pmd_for_1rxq_each(self)
dataif.update_pmd_load(self.pmd_map)
variance_value = dataif.pmd_load_variance(self.pmd_map)
self.assertEqual(int(variance_value), 17)
pmd1.del_port('virtport1')
pmd2.del_port('virtport2')
def test_one_rxq_lnuma(self):
# set different numa for pmds
pmd1 = self.pmd_map[self.core1_id]
pmd2 = self.pmd_map[self.core2_id]
pmd1.numa_id = 0
pmd2.numa_id = 0
fx_2pmd_for_1rxq_each(self)
dataif.update_pmd_load(self.pmd_map)
variance_value = dataif.pmd_load_variance(self.pmd_map)
self.assertEqual(int(variance_value), 17)
# del port object from pmd.
# TODO: create fx_ post deletion routine for clean up
pmd1.del_port('virtport1')
pmd2.del_port('virtport2')
def test_two_rxq_lnuma(self, mock_open):
mock_open.side_effect = [
mock.mock_open(read_data=_FX_CPU_INFO).return_value
]
# set different numa for pmds
pmd1 = self.pmd_map[self.core1_id]
pmd2 = self.pmd_map[self.core2_id]
pmd1.numa_id = 0
pmd2.numa_id = 0
fx_1pmd_for_2rxq(self)
dataif.update_pmd_load(self.pmd_map)
variance_value = dataif.pmd_load_variance(self.pmd_map)
self.assertEqual(int(variance_value), 17)
# del port object from pmd.
# TODO: create fx_ post deletion routine for clean up
pmd1.del_port('virtport1')
pmd1.del_port('virtport2')
def collect_data(n_samples, s_sampling):
"""
Collect various stats and rxqs mapping of every pmd in the vswitch.
Parameters
----------
n_samples : int
number of samples
s_sampling: int
sampling interval
"""
ctx = dataif.Context
rctx = RebalContext
# collect samples of pmd and rxq stats.
idx_max = n_samples
idx_gen = (o for o in range(0, idx_max))
while True:
try:
next(idx_gen)
except StopIteration:
break
try:
dataif.get_port_stats()
dataif.get_interface_stats()
dataif.get_pmd_stats(ctx.pmd_map)
dataif.get_pmd_rxqs(ctx.pmd_map)
except (error.OsCommandExc, error.ObjCreateExc,
error.ObjConsistencyExc, error.ObjParseExc,
error.ObjModelExc) as e:
# report error event
now = datetime.now()
now_ts = now.strftime("%Y-%m-%d %H:%M:%S")
if isinstance(e, error.OsCommandExc):
nlog.warn("unable to collect data: %s" % e)
ctx.events.append(("switch", "error", now_ts))
raise error.NcdShutdownExc
elif isinstance(e, error.ObjCreateExc):
nlog.warn("unable to create object: %s" % e)
ctx.events.append(("ncd", "error", now_ts))
raise error.NcdShutdownExc
elif isinstance(e, error.ObjConsistencyExc):
nlog.warn("inconsistency in collected data: %s" % e)
ctx.events.append(("ncd", "error", now_ts))
raise error.NcdShutdownExc
elif isinstance(e, error.ObjModelExc):
nlog.warn("switch states changed: %s" % e)
ctx.events.append(("ncd", "retry_model", now_ts))
# reset collected data
ctx.pmd_map.clear()
ctx.port_to_cls.clear()
ctx.port_to_id.clear()
# restart iterations
idx_gen.close()
idx_max = config.ncd_samples_max
idx_gen = (o for o in range(0, idx_max))
continue
elif isinstance(e, error.ObjParseExc):
nlog.warn("unable to parse info: %s" % e)
ctx.events.append(("ncd", "retry_parse", now_ts))
# reset collected data
ctx.pmd_map.clear()
ctx.port_to_cls.clear()
ctx.port_to_id.clear()
# restart iterations
idx_gen.close()
idx_max = config.ncd_samples_max
idx_gen = (o for o in range(0, idx_max))
time.sleep(s_sampling)
continue
else:
nlog.error("unhandled exception: %s" % e)
ctx.events.append(("ncd", "exception", now_ts))
raise error.NcdShutdownExc
time.sleep(s_sampling)
now = datetime.now()
ctx.last_ts = now.strftime("%Y-%m-%d %H:%M:%S")
dataif.update_pmd_load(ctx.pmd_map)
rctx.rebal_tick += n_samples
return ctx