From 23e17d02023f143f4845b49d689f8a479cf678e7 Mon Sep 17 00:00:00 2001 From: DanielMartinBuckley Date: Tue, 5 Jun 2018 19:06:38 +0100 Subject: Decrease Sampling interval JIRA: YARDSTICK-1219 Currently NSB for NFVI using PROX returns sampling information every 13 seconds. This is too slow. It is required to return sampling information form Generator AND VNF at least every 1 second. This change is depandant on JIRA: YARDSTICK-1212 and YARDSTICK-1220 Change-Id: Ica7ab795a2919d191d8cd846d028e15739e33fb7 Signed-off-by: Daniel Martin Buckley (cherry picked from commit f8b45aca386ed5852d9568c531ba4595c68cc0e2) --- .../vnf_generic/vnf/prox_helpers.py | 80 +++++++++++++++++----- .../network_services/vnf_generic/vnf/prox_vnf.py | 28 +++++--- .../vnf_generic/vnf/test_prox_helpers.py | 49 +++++++++---- .../vnf_generic/vnf/test_prox_vnf.py | 9 +-- 4 files changed, 126 insertions(+), 40 deletions(-) diff --git a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py index 31ed30140..12ec1c8c5 100644 --- a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py +++ b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py @@ -315,7 +315,7 @@ class ProxSocketHelper(object): return ret_str - def get_data(self, pkt_dump_only=False, timeout=1): + def get_data(self, pkt_dump_only=False, timeout=0.01): """ read data from the socket """ # This method behaves slightly differently depending on whether it is @@ -520,6 +520,51 @@ class ProxSocketHelper(object): tsc = int(ret[3]) return rx, tx, drop, tsc + def multi_port_stats(self, ports): + """get counter values from all ports port""" + + ports_str = "" + for port in ports: + ports_str = ports_str + str(port) + "," + ports_str = ports_str[:-1] + + ports_all_data = [] + tot_result = [0] * len(ports) + + retry_counter = 0 + port_index = 0 + while (len(ports) is not len(ports_all_data)) and (retry_counter < 10): + self.put_command("multi port stats {}\n".format(ports_str)) + ports_all_data = self.get_data().split(";") + + if len(ports) is len(ports_all_data): + for port_data_str in ports_all_data: + + try: + tot_result[port_index] = [try_int(s, 0) for s in port_data_str.split(",")] + except (IndexError, TypeError): + LOG.error("Port Index error %d %s - retrying ", port_index, port_data_str) + + if (len(tot_result[port_index]) is not 6) or \ + tot_result[port_index][0] is not ports[port_index]: + ports_all_data = [] + tot_result = [0] * len(ports) + port_index = 0 + time.sleep(0.1) + LOG.error("Corrupted PACKET %s - retrying", port_data_str) + break + else: + port_index = port_index + 1 + else: + LOG.error("Empty / too much data - retry -%s-", ports_all_data) + ports_all_data = [] + tot_result = [0] * len(ports) + port_index = 0 + time.sleep(0.1) + + retry_counter = retry_counter + 1 + return tot_result + def port_stats(self, ports): """get counter values from a specific port""" tot_result = [0] * 12 @@ -1000,9 +1045,13 @@ class ProxDataHelper(object): @property def totals_and_pps(self): if self._totals_and_pps is None: - rx_total, tx_total = self.sut.port_stats(range(self.port_count))[6:8] - pps = self.value / 100.0 * self.line_rate_to_pps() - self._totals_and_pps = rx_total, tx_total, pps + rx_total = tx_total = 0 + all_ports = self.sut.multi_port_stats(range(self.port_count)) + for port in all_ports: + rx_total = rx_total + port[1] + tx_total = tx_total + port[2] + requested_pps = self.value / 100.0 * self.line_rate_to_pps() + self._totals_and_pps = rx_total, tx_total, requested_pps return self._totals_and_pps @property @@ -1020,19 +1069,18 @@ class ProxDataHelper(object): @property def samples(self): samples = {} + ports = [] + port_names = [] for port_name, port_num in self.vnfd_helper.ports_iter(): - try: - port_rx_total, port_tx_total = self.sut.port_stats([port_num])[6:8] - samples[port_name] = { - "in_packets": port_rx_total, - "out_packets": port_tx_total, - } - except (KeyError, TypeError, NameError, MemoryError, ValueError, - SystemError, BufferError): - samples[port_name] = { - "in_packets": 0, - "out_packets": 0, - } + ports.append(port_num) + port_names.append(port_name) + + results = self.sut.multi_port_stats(ports) + for result in results: + port_num = result[0] + samples[port_names[port_num]] = { + "in_packets": result[1], + "out_packets": result[2]} return samples def __enter__(self): diff --git a/yardstick/network_services/vnf_generic/vnf/prox_vnf.py b/yardstick/network_services/vnf_generic/vnf/prox_vnf.py index 285e08659..cb97f7711 100644 --- a/yardstick/network_services/vnf_generic/vnf/prox_vnf.py +++ b/yardstick/network_services/vnf_generic/vnf/prox_vnf.py @@ -85,14 +85,15 @@ class ProxApproxVnf(SampleVNF): raise RuntimeError("Failed ..Invalid no of ports .. " "1, 2 or 4 ports only supported at this time") - self.port_stats = self.vnf_execute('port_stats', range(port_count)) + all_port_stats = self.vnf_execute('multi_port_stats', range(port_count)) curr_time = time.time() + rx_total = tx_total = 0 try: - rx_total = self.port_stats[6] - tx_total = self.port_stats[7] - except IndexError: - LOG.debug("port_stats parse fail ") - # return empty dict so we don't mess up existing KPIs + for single_port_stats in all_port_stats: + rx_total = rx_total + single_port_stats[1] + tx_total = tx_total + single_port_stats[2] + except (TypeError, IndexError): + LOG.error("Invalid data ...") return {} result = { @@ -103,8 +104,19 @@ class ProxApproxVnf(SampleVNF): # collectd KPIs here and not TG KPIs, so use a different method name "collect_stats": self.resource_helper.collect_collectd_kpi(), } - curr_packets_in = int((rx_total - self.prev_packets_in) / (curr_time - self.prev_time)) - curr_packets_fwd = int((tx_total - self.prev_packets_sent) / (curr_time - self.prev_time)) + try: + curr_packets_in = int((rx_total - self.prev_packets_in) + / (curr_time - self.prev_time)) + except ZeroDivisionError: + LOG.error("Error.... Divide by Zero") + curr_packets_in = 0 + + try: + curr_packets_fwd = int((tx_total - self.prev_packets_sent) + / (curr_time - self.prev_time)) + except ZeroDivisionError: + LOG.error("Error.... Divide by Zero") + curr_packets_fwd = 0 result["curr_packets_in"] = curr_packets_in result["curr_packets_fwd"] = curr_packets_fwd diff --git a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py index 0cb11933f..b1853f12f 100644 --- a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py +++ b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py @@ -556,6 +556,31 @@ class TestProxSocketHelper(unittest.TestCase): result = prox.core_stats([3, 4, 5], 16) self.assertEqual(result, expected) + def test_multi_port_stats(self): + + mock_socket = mock.MagicMock() + prox = ProxSocketHelper(mock_socket) + prox.get_data = mock.MagicMock(return_value='0,1,2,3,4,5;1,1,2,3,4,5') + expected = [[0, 1, 2, 3, 4, 5], [1, 1, 2, 3, 4, 5]] + result = prox.multi_port_stats([0, 1]) + self.assertEqual(result, expected) + + prox.get_data = mock.MagicMock(return_value='0,1,2,3,4,5;1,1,2,3,4,5') + result = prox.multi_port_stats([0]) + expected = [0] + self.assertEqual(result, expected) + + prox.get_data = mock.MagicMock(return_value='0,1,2,3;1,1,2,3,4,5') + result = prox.multi_port_stats([0, 1]) + expected = [0] * 2 + self.assertEqual(result, expected) + + prox.get_data = mock.MagicMock(return_value='99,1,2,3,4,5;1,1,2,3,4,5') + expected = [0] * 2 + result = prox.multi_port_stats([0, 1]) + self.assertEqual(result, expected) + + def test_port_stats(self): port_stats = [ ','.join(str(n) for n in range(3, 15)), @@ -1542,34 +1567,34 @@ class TestProxDataHelper(unittest.TestCase): vnfd_helper.port_pairs.all_ports = list(range(4)) sut = mock.MagicMock() - sut.port_stats.return_value = list(range(10)) + sut.multi_port_stats.return_value = [[0, 1, 2, 3, 4, 5], [1, 1, 2, 3, 4, 5], + [2, 1, 2, 3, 4, 5], [3, 1, 2, 3, 4, 5]] data_helper = ProxDataHelper( vnfd_helper, sut, pkt_size, 25, None, constants.NIC_GBPS_DEFAULT * constants.ONE_GIGABIT_IN_BITS) - self.assertEqual(data_helper.rx_total, 6) - self.assertEqual(data_helper.tx_total, 7) + self.assertEqual(data_helper.rx_total, 4) + self.assertEqual(data_helper.tx_total, 8) self.assertEqual(data_helper.pps, 6.25e6) def test_samples(self): vnfd_helper = mock.MagicMock() - vnfd_helper.port_pairs.all_ports = list(range(4)) - vnfd_helper.ports_iter.return_value = [('xe1', 3), ('xe2', 7)] + vnfd_helper.ports_iter.return_value = [('xe0', 0), ('xe1', 1)] sut = mock.MagicMock() - sut.port_stats.return_value = list(range(10)) + sut.multi_port_stats.return_value = [[0, 1, 2, 3, 4, 5], [1, 11, 12, 3, 4, 5]] data_helper = ProxDataHelper(vnfd_helper, sut, None, None, None, None) expected = { - 'xe1': { - 'in_packets': 6, - 'out_packets': 7, + 'xe0': { + 'in_packets': 1, + 'out_packets': 2, }, - 'xe2': { - 'in_packets': 6, - 'out_packets': 7, + 'xe1': { + 'in_packets': 11, + 'out_packets': 12, }, } result = data_helper.samples diff --git a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py index fa2d462ab..351607fb5 100644 --- a/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py +++ b/yardstick/tests/unit/network_services/vnf_generic/vnf/test_prox_vnf.py @@ -339,16 +339,17 @@ class TestProxApproxVnf(unittest.TestCase): mock_ssh(ssh) resource_helper = mock.MagicMock() - resource_helper.execute.return_value = list(range(12)) + resource_helper.execute.return_value = [[0, 1, 2, 3, 4, 5], [1, 1, 2, 3, 4, 5], + [2, 1, 2, 3, 4, 5], [3, 1, 2, 3, 4, 5]] resource_helper.collect_collectd_kpi.return_value = {'core': {'result': 234}} prox_approx_vnf = ProxApproxVnf(NAME, self.VNFD0) prox_approx_vnf.resource_helper = resource_helper expected = { - 'packets_in': 6, - 'packets_dropped': 1, - 'packets_fwd': 7, + 'packets_in': 4, + 'packets_dropped': 4, + 'packets_fwd': 8, 'collect_stats': {'core': {'result': 234}}, } result = prox_approx_vnf.collect_kpi() -- cgit 1.2.3-korg