diff options
4 files changed, 83 insertions, 20 deletions
diff --git a/yardstick/network_services/traffic_profile/ixia_rfc2544.py b/yardstick/network_services/traffic_profile/ixia_rfc2544.py index 35038891b..7df590fb3 100644 --- a/yardstick/network_services/traffic_profile/ixia_rfc2544.py +++ b/yardstick/network_services/traffic_profile/ixia_rfc2544.py @@ -167,6 +167,10 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile): self.ports = [port for port in port_generator()] + def _get_next_rate(self): + rate = round(float(self.max_rate + self.min_rate)/2.0, self.RATE_ROUND) + return rate + def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None): mac = {} if mac is None else mac first_run = self.first_run @@ -176,17 +180,16 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile): self.max_rate = self.rate self.min_rate = 0.0 else: - self.rate = round(float(self.max_rate + self.min_rate) / 2.0, - self.RATE_ROUND) + self.rate = self._get_next_rate() traffic = self._get_ixia_traffic_profile(self.full_profile, mac) self._ixia_traffic_generate(traffic, ixia_obj) return first_run def get_drop_percentage(self, samples, tol_min, tolerance, precision, - first_run=False): + resolution, first_run=False): completed = False - drop_percent = 100 + drop_percent = 100.0 num_ifaces = len(samples) duration = self.config.duration in_packets_sum = sum( @@ -217,6 +220,14 @@ class IXIARFC2544Profile(trex_traffic_profile.TrexProfile): else: completed = True + next_rate = self._get_next_rate() + if abs(next_rate - self.rate) < resolution: + LOG.debug("rate=%s, next_rate=%s, resolution=%s", self.rate, + next_rate, resolution) + # stop test if the difference between the rate transmission + # in two iterations is smaller than the value of the resolution + completed = True + LOG.debug("tolerance=%s, tolerance_precision=%s drop_percent=%s " "completed=%s", tolerance, precision, drop_percent, completed) diff --git a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py index 82a6eda33..6c2e940d1 100644 --- a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py +++ b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py @@ -470,6 +470,7 @@ class Rfc2544ResourceHelper(object): DEFAULT_CORRELATED_TRAFFIC = False DEFAULT_LATENCY = False DEFAULT_TOLERANCE = '0.0001 - 0.0001' + DEFAULT_RESOLUTION = '0.1' def __init__(self, scenario_helper): super(Rfc2544ResourceHelper, self).__init__() @@ -481,6 +482,7 @@ class Rfc2544ResourceHelper(object): self._tolerance_low = None self._tolerance_high = None self._tolerance_precision = None + self._resolution = None @property def rfc2544(self): @@ -520,6 +522,13 @@ class Rfc2544ResourceHelper(object): self._latency = self.get_rfc2544('latency', self.DEFAULT_LATENCY) return self._latency + @property + def resolution(self): + if self._resolution is None: + self._resolution = float(self.get_rfc2544('resolution', + self.DEFAULT_RESOLUTION)) + return self._resolution + def get_rfc2544(self, name, default=None): return self.rfc2544.get(name, default) diff --git a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py index c2327733a..2c3140f8c 100644 --- a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py +++ b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py @@ -543,6 +543,7 @@ class IxiaResourceHelper(ClientResourceHelper): min_tol = self.rfc_helper.tolerance_low max_tol = self.rfc_helper.tolerance_high precision = self.rfc_helper.tolerance_precision + resolution = self.rfc_helper.resolution default = "00:00:00:00:00:00" self._build_ports() @@ -563,8 +564,8 @@ class IxiaResourceHelper(ClientResourceHelper): try: while not self._terminated.value: - first_run = traffic_profile.execute_traffic( - self, self.client, mac) + first_run = traffic_profile.execute_traffic(self, self.client, + mac) self.client_started.value = 1 # pylint: disable=unnecessary-lambda utils.wait_until_true(lambda: self.client.is_traffic_stopped(), @@ -573,7 +574,8 @@ class IxiaResourceHelper(ClientResourceHelper): traffic_profile.config.duration) completed, samples = traffic_profile.get_drop_percentage( - samples, min_tol, max_tol, precision, first_run=first_run) + samples, min_tol, max_tol, precision, resolution, + first_run=first_run) self._queue.put(samples) if completed: @@ -594,6 +596,7 @@ class IxiaResourceHelper(ClientResourceHelper): min_tol = self.rfc_helper.tolerance_low max_tol = self.rfc_helper.tolerance_high precision = self.rfc_helper.tolerance_precision + resolution = self.rfc_helper.resolution default = "00:00:00:00:00:00" self._build_ports() @@ -614,6 +617,7 @@ class IxiaResourceHelper(ClientResourceHelper): try: completed = False + self.rfc_helper.iteration.value = 0 self.client_started.value = 1 while completed is False and not self._terminated.value: LOG.info("Wait for task ...") @@ -626,9 +630,11 @@ class IxiaResourceHelper(ClientResourceHelper): if task != 'RUN_TRAFFIC': continue - LOG.info("Got %s task", task) - first_run = traffic_profile.execute_traffic( - self, self.client, mac) + self.rfc_helper.iteration.value += 1 + LOG.info("Got %s task, start iteration %d", task, + self.rfc_helper.iteration.value) + first_run = traffic_profile.execute_traffic(self, self.client, + mac) # pylint: disable=unnecessary-lambda utils.wait_until_true(lambda: self.client.is_traffic_stopped(), timeout=traffic_profile.config.duration * 2) @@ -636,7 +642,8 @@ class IxiaResourceHelper(ClientResourceHelper): traffic_profile.config.duration) completed, samples = traffic_profile.get_drop_percentage( - samples, min_tol, max_tol, precision, first_run=first_run) + samples, min_tol, max_tol, precision, resolution, + first_run=first_run) self._queue.put(samples) if completed: @@ -653,10 +660,6 @@ class IxiaResourceHelper(ClientResourceHelper): self.client_started.value = 0 LOG.debug("IxiaResourceHelper::run_test done") - def collect_kpi(self): - self.rfc_helper.iteration.value += 1 - return super(IxiaResourceHelper, self).collect_kpi() - class IxiaTrafficGen(SampleVNFTrafficGen): diff --git a/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py b/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py index ef16676c7..3d12dddcf 100644 --- a/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py +++ b/yardstick/tests/unit/network_services/traffic_profile/test_ixia_rfc2544.py @@ -584,8 +584,9 @@ class TestIXIARFC2544Profile(unittest.TestCase): 'Store-Forward_Max_latency_ns': 28} } rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) + rfc2544_profile._get_next_rate = mock.Mock(return_value=100.0) completed, samples = rfc2544_profile.get_drop_percentage( - samples, 0, 1, 4) + samples, 0, 1, 4, 0.1) self.assertTrue(completed) self.assertEqual(66.9, samples['TxThroughput']) self.assertEqual(66.833, samples['RxThroughput']) @@ -608,8 +609,9 @@ class TestIXIARFC2544Profile(unittest.TestCase): } rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) rfc2544_profile.rate = 1000 + rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0) completed, samples = rfc2544_profile.get_drop_percentage( - samples, 0, 0.05, 4) + samples, 0, 0.05, 4, 0.1) self.assertFalse(completed) self.assertEqual(66.9, samples['TxThroughput']) self.assertEqual(66.833, samples['RxThroughput']) @@ -630,8 +632,9 @@ class TestIXIARFC2544Profile(unittest.TestCase): } rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) rfc2544_profile.rate = 1000 + rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0) completed, samples = rfc2544_profile.get_drop_percentage( - samples, 0.2, 1, 4) + samples, 0.2, 1, 4, 0.1) self.assertFalse(completed) self.assertEqual(66.9, samples['TxThroughput']) self.assertEqual(66.833, samples['RxThroughput']) @@ -653,8 +656,9 @@ class TestIXIARFC2544Profile(unittest.TestCase): } rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) rfc2544_profile.rate = 1000 + rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0) completed, samples = rfc2544_profile.get_drop_percentage( - samples, 0.2, 1, 4) + samples, 0.2, 1, 4, 0.1) self.assertFalse(completed) self.assertEqual(0.0, samples['TxThroughput']) self.assertEqual(66.833, samples['RxThroughput']) @@ -674,14 +678,50 @@ class TestIXIARFC2544Profile(unittest.TestCase): 'Store-Forward_Max_latency_ns': 25} } rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) + rfc2544_profile._get_next_rate = mock.Mock(return_value=50.0) completed, samples = rfc2544_profile.get_drop_percentage( - samples, 0, 1, 4, first_run=True) + samples, 0, 1, 4, 0.1, first_run=True) self.assertTrue(completed) self.assertEqual(66.9, samples['TxThroughput']) self.assertEqual(66.833, samples['RxThroughput']) self.assertEqual(0.099651, samples['DropPercentage']) self.assertEqual(33.45, rfc2544_profile.rate) + def test_get_drop_percentage_resolution(self): + rfc2544_profile = ixia_rfc2544.IXIARFC2544Profile(self.TRAFFIC_PROFILE) + rfc2544_profile._get_next_rate = mock.Mock(return_value=0.1) + samples = {'iface_name_1': + {'in_packets': 1000, 'out_packets': 1000, + 'Store-Forward_Avg_latency_ns': 20, + 'Store-Forward_Min_latency_ns': 15, + 'Store-Forward_Max_latency_ns': 25}, + 'iface_name_2': + {'in_packets': 1005, 'out_packets': 1007, + 'Store-Forward_Avg_latency_ns': 20, + 'Store-Forward_Min_latency_ns': 15, + 'Store-Forward_Max_latency_ns': 25} + } + rfc2544_profile.rate = 0.19 + completed, _ = rfc2544_profile.get_drop_percentage( + samples, 0, 0.05, 4, 0.1) + self.assertTrue(completed) + + samples = {'iface_name_1': + {'in_packets': 1000, 'out_packets': 1000, + 'Store-Forward_Avg_latency_ns': 20, + 'Store-Forward_Min_latency_ns': 15, + 'Store-Forward_Max_latency_ns': 25}, + 'iface_name_2': + {'in_packets': 1005, 'out_packets': 1007, + 'Store-Forward_Avg_latency_ns': 20, + 'Store-Forward_Min_latency_ns': 15, + 'Store-Forward_Max_latency_ns': 25} + } + rfc2544_profile.rate = 0.5 + completed, _ = rfc2544_profile.get_drop_percentage( + samples, 0, 0.05, 4, 0.1) + self.assertFalse(completed) + class TestIXIARFC2544PppoeScenarioProfile(unittest.TestCase): |