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authorAbhijit Sinha <abhijit.sinha@intel.com>2018-06-06 12:43:51 +0000
committerGerrit Code Review <gerrit@opnfv.org>2018-06-06 12:43:51 +0000
commite07163f9d5ef6060112792caf08678943dc2fe11 (patch)
treebdfe302d60cbe46570741919405b9407c4af8467
parentc5ea8f6449bb80e239753fe954f9f02b728777dd (diff)
parent68aaa8ce8b20ba39040aa2469b384f59709620a7 (diff)
Merge "Fix NSB NFVi metrics accuracy"
-rw-r--r--tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py41
-rw-r--r--yardstick/network_services/traffic_profile/prox_binsearch.py24
-rw-r--r--yardstick/network_services/vnf_generic/vnf/prox_helpers.py46
-rw-r--r--yardstick/network_services/vnf_generic/vnf/prox_vnf.py24
-rw-r--r--yardstick/network_services/vnf_generic/vnf/sample_vnf.py2
-rw-r--r--yardstick/tests/unit/network_services/traffic_profile/test_prox_binsearch.py7
6 files changed, 82 insertions, 62 deletions
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
index bc48f994c..301a90cfe 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_prox_helpers.py
@@ -1,3 +1,4 @@
+
# Copyright (c) 2016-2017 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
@@ -151,12 +152,12 @@ class TestProxTestDataTuple(unittest.TestCase):
self.assertEqual(prox_test_data.latency, 6)
self.assertEqual(prox_test_data.rx_total, 7)
self.assertEqual(prox_test_data.tx_total, 8)
- self.assertEqual(prox_test_data.pps, 9)
+ self.assertEqual(prox_test_data.requested_pps, 9)
def test_properties(self):
prox_test_data = ProxTestDataTuple(1, 2, 3, 4, 5, 6, 7, 8, 9)
self.assertEqual(prox_test_data.pkt_loss, 12.5)
- self.assertEqual(prox_test_data.mpps, 1.6 / 1e6)
+ self.assertEqual(prox_test_data.tx_mpps, 1.6 / 1e6)
self.assertEqual(prox_test_data.can_be_lost, 0)
self.assertEqual(prox_test_data.drop_total, 1)
self.assertFalse(prox_test_data.success)
@@ -172,11 +173,12 @@ class TestProxTestDataTuple(unittest.TestCase):
prox_test_data = ProxTestDataTuple(1, 2, 3, 4, 5, [6.1, 6.9, 6.4], 7, 8, 9)
expected = {
- "Throughput": 1.6 / 1e6,
+ "Throughput": 1.2 / 1e6,
"DropPackets": 12.5,
"CurrentDropPackets": 12.5,
- "TxThroughput": 9 / 1e6,
- "RxThroughput": 1.6 / 1e6,
+ "RequestedTxThroughput": 9 / 1e6,
+ "TxThroughput": 1.6 / 1e6,
+ "RxThroughput": 1.2 / 1e6,
"PktSize": 64,
"PortSample": 1,
"LatencyMin": 6.1,
@@ -187,11 +189,12 @@ class TestProxTestDataTuple(unittest.TestCase):
self.assertDictEqual(result, expected)
expected = {
- "Throughput": 1.6 / 1e6,
+ "Throughput": 1.2 / 1e6,
"DropPackets": 0.123,
"CurrentDropPackets": 0.123,
- "TxThroughput": 9 / 1e6,
- "RxThroughput": 1.6 / 1e6,
+ "RequestedTxThroughput": 9 / 1e6,
+ "TxThroughput": 1.6 / 1e6,
+ "RxThroughput": 1.2 / 1e6,
"PktSize": 64,
"LatencyMin": 6.1,
"LatencyMax": 6.9,
@@ -200,17 +203,17 @@ class TestProxTestDataTuple(unittest.TestCase):
result = prox_test_data.get_samples(64, 0.123)
self.assertDictEqual(result, expected)
- @mock.patch('yardstick.network_services.vnf_generic.vnf.prox_helpers.LOG')
+ @mock.patch('yardstick.LOG_RESULT', create=True)
def test_log_data(self, mock_logger):
my_mock_logger = mock.MagicMock()
prox_test_data = ProxTestDataTuple(1, 2, 3, 4, 5, [6.1, 6.9, 6.4], 7, 8, 9)
prox_test_data.log_data()
self.assertEqual(my_mock_logger.debug.call_count, 0)
- self.assertEqual(mock_logger.debug.call_count, 2)
+ self.assertEqual(mock_logger.debug.call_count, 0)
mock_logger.debug.reset_mock()
prox_test_data.log_data(my_mock_logger)
- self.assertEqual(my_mock_logger.debug.call_count, 2)
+ self.assertEqual(my_mock_logger.debug.call_count, 0)
self.assertEqual(mock_logger.debug.call_count, 0)
@@ -334,17 +337,17 @@ class TestProxSocketHelper(unittest.TestCase):
mock_select.select.side_effect = chain([[object()], [None]], repeat([1], 3))
mock_recv.decode.return_value = PACKET_DUMP_2
ret = prox.get_data()
- self.assertEqual(mock_select.select.call_count, 2)
+ self.assertEqual(mock_select.select.call_count, 1)
self.assertEqual(ret, 'jumped over')
self.assertEqual(len(prox._pkt_dumps), 3)
def test__parse_socket_data_mixed_data(self):
prox = ProxSocketHelper(mock.MagicMock())
- ret = prox._parse_socket_data(PACKET_DUMP_NON_1, False)
+ ret, _ = prox._parse_socket_data(PACKET_DUMP_NON_1, False)
self.assertEqual(ret, 'not_a_dump,1,2')
self.assertEqual(len(prox._pkt_dumps), 0)
- ret = prox._parse_socket_data(PACKET_DUMP_MIXED_1, False)
+ ret, _ = prox._parse_socket_data(PACKET_DUMP_MIXED_1, False)
self.assertEqual(ret, 'not_a_dump,1,2')
self.assertEqual(len(prox._pkt_dumps), 1)
@@ -356,18 +359,18 @@ class TestProxSocketHelper(unittest.TestCase):
with self.assertRaises(ValueError):
prox._parse_socket_data(PACKET_DUMP_BAD_2, False)
- ret = prox._parse_socket_data(PACKET_DUMP_BAD_3, False)
+ ret, _ = prox._parse_socket_data(PACKET_DUMP_BAD_3, False)
self.assertEqual(ret, 'pktdump,3')
def test__parse_socket_data_pkt_dump_only(self):
prox = ProxSocketHelper(mock.MagicMock())
- ret = prox._parse_socket_data('', True)
+ ret, _ = prox._parse_socket_data('', True)
self.assertFalse(ret)
- ret = prox._parse_socket_data(PACKET_DUMP_1, True)
+ ret, _ = prox._parse_socket_data(PACKET_DUMP_1, True)
self.assertTrue(ret)
- ret = prox._parse_socket_data(PACKET_DUMP_2, True)
+ ret, _ = prox._parse_socket_data(PACKET_DUMP_2, True)
self.assertTrue(ret)
def test_put_command(self):
@@ -1542,7 +1545,7 @@ class TestProxDataHelper(unittest.TestCase):
self.assertEqual(data_helper.rx_total, 6)
self.assertEqual(data_helper.tx_total, 7)
- self.assertEqual(data_helper.pps, 6.25e6)
+ self.assertEqual(data_helper.requested_pps, 6.25e6)
def test_samples(self):
vnfd_helper = mock.MagicMock()
diff --git a/yardstick/network_services/traffic_profile/prox_binsearch.py b/yardstick/network_services/traffic_profile/prox_binsearch.py
index 1e926aca2..225ee4356 100644
--- a/yardstick/network_services/traffic_profile/prox_binsearch.py
+++ b/yardstick/network_services/traffic_profile/prox_binsearch.py
@@ -108,7 +108,6 @@ class ProxBinSearchProfile(ProxProfile):
self.tolerated_loss,
line_speed)
self.curr_time = time.time()
- diff_time = self.curr_time - self.prev_time
self.prev_time = self.curr_time
if result.success:
@@ -120,10 +119,11 @@ class ProxBinSearchProfile(ProxProfile):
# store results with success tag in influxdb
success_samples = {'Success_' + key: value for key, value in samples.items()}
- success_samples["Success_rx_total"] = int(result.rx_total / diff_time)
- success_samples["Success_tx_total"] = int(result.tx_total / diff_time)
- success_samples["Success_can_be_lost"] = int(result.can_be_lost / diff_time)
- success_samples["Success_drop_total"] = int(result.drop_total / diff_time)
+ # Store number of packets based statistics (we already have throughput)
+ success_samples["Success_rx_total"] = int(result.rx_total)
+ success_samples["Success_tx_total"] = int(result.tx_total)
+ success_samples["Success_can_be_lost"] = int(result.can_be_lost)
+ success_samples["Success_drop_total"] = int(result.drop_total)
self.queue.put(success_samples)
# Store Actual throughput for result samples
@@ -133,20 +133,16 @@ class ProxBinSearchProfile(ProxProfile):
LOG.debug("Failure... Decreasing upper bound")
self.current_upper = test_value
samples = result.get_samples(pkt_size, successful_pkt_loss, port_samples)
+ # samples contains data such as Latency, Throughput, number of packets
+ # Hence they should not be divided by the time difference
- for k in samples:
- tmp = samples[k]
- if isinstance(tmp, dict):
- for k2 in tmp:
- samples[k][k2] = int(samples[k][k2] / diff_time)
-
- if theor_max_thruput < samples["TxThroughput"]:
- theor_max_thruput = samples['TxThroughput']
+ if theor_max_thruput < samples["RequestedTxThroughput"]:
+ theor_max_thruput = samples['RequestedTxThroughput']
self.queue.put({'theor_max_throughput': theor_max_thruput})
LOG.debug("Collect TG KPIs %s %s", datetime.datetime.now(), samples)
self.queue.put(samples)
result_samples["Result_pktSize"] = pkt_size
- result_samples["Result_theor_max_throughput"] = theor_max_thruput/(1000 * 1000)
+ result_samples["Result_theor_max_throughput"] = theor_max_thruput
self.queue.put(result_samples)
diff --git a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
index 31ed30140..7816c6d91 100644
--- a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
+++ b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
@@ -44,6 +44,8 @@ SECTION_CONTENTS = 1
LOG = logging.getLogger(__name__)
LOG.setLevel(logging.DEBUG)
+LOG_RESULT = logging.getLogger('yardstick')
+LOG_RESULT.setLevel(logging.DEBUG)
BITS_PER_BYTE = 8
RETRY_SECONDS = 60
@@ -123,7 +125,8 @@ class TotStatsTuple(namedtuple('TotStats', 'rx,tx,tsc,hz')):
class ProxTestDataTuple(namedtuple('ProxTestDataTuple', 'tolerated,tsc_hz,delta_rx,'
'delta_tx,delta_tsc,'
- 'latency,rx_total,tx_total,pps')):
+ 'latency,rx_total,tx_total,'
+ 'requested_pps')):
@property
def pkt_loss(self):
try:
@@ -132,11 +135,16 @@ class ProxTestDataTuple(namedtuple('ProxTestDataTuple', 'tolerated,tsc_hz,delta_
return 100.0
@property
- def mpps(self):
+ def tx_mpps(self):
# calculate the effective throughput in Mpps
return float(self.delta_tx) * self.tsc_hz / self.delta_tsc / 1e6
@property
+ def rx_mpps(self):
+ # calculate the effective throughput in Mpps
+ return float(self.delta_rx) * self.tsc_hz / self.delta_tsc / 1e6
+
+ @property
def can_be_lost(self):
return int(self.tx_total * self.tolerated / 1e2)
@@ -162,11 +170,12 @@ class ProxTestDataTuple(namedtuple('ProxTestDataTuple', 'tolerated,tsc_hz,delta_
]
samples = {
- "Throughput": self.mpps,
+ "Throughput": self.rx_mpps,
+ "RxThroughput": self.rx_mpps,
"DropPackets": pkt_loss,
"CurrentDropPackets": pkt_loss,
- "TxThroughput": self.pps / 1e6,
- "RxThroughput": self.mpps,
+ "RequestedTxThroughput": self.requested_pps / 1e6,
+ "TxThroughput": self.tx_mpps,
"PktSize": pkt_size,
}
if port_samples:
@@ -177,11 +186,12 @@ class ProxTestDataTuple(namedtuple('ProxTestDataTuple', 'tolerated,tsc_hz,delta_
def log_data(self, logger=None):
if logger is None:
- logger = LOG
+ logger = LOG_RESULT
template = "RX: %d; TX: %d; dropped: %d (tolerated: %d)"
- logger.debug(template, self.rx_total, self.tx_total, self.drop_total, self.can_be_lost)
- logger.debug("Mpps configured: %f; Mpps effective %f", self.pps / 1e6, self.mpps)
+ logger.info(template, self.rx_total, self.tx_total, self.drop_total, self.can_be_lost)
+ logger.info("Mpps configured: %f; Mpps generated %f; Mpps received %f",
+ self.requested_pps / 1e6, self.tx_mpps, self.rx_mpps)
class PacketDump(object):
@@ -288,7 +298,7 @@ class ProxSocketHelper(object):
if mode != 'pktdump':
# Regular 1-line message. Stop reading from the socket.
LOG.debug("Regular response read")
- return ret_str
+ return ret_str, True
LOG.debug("Packet dump header read: [%s]", ret_str)
@@ -309,11 +319,11 @@ class ProxSocketHelper(object):
# Return boolean instead of string to signal
# successful reception of the packet dump.
LOG.debug("Packet dump stored, returning")
- return True
+ return True, False
index = data_end + 1
- return ret_str
+ return ret_str, False
def get_data(self, pkt_dump_only=False, timeout=1):
""" read data from the socket """
@@ -352,7 +362,9 @@ class ProxSocketHelper(object):
ret_str = ""
for status in iter(is_ready, False):
decoded_data = self._sock.recv(256).decode('utf-8')
- ret_str = self._parse_socket_data(decoded_data, pkt_dump_only)
+ ret_str, done = self._parse_socket_data(decoded_data, pkt_dump_only)
+ if (done):
+ break
LOG.debug("Received data from socket: [%s]", ret_str)
return ret_str if status else ''
@@ -1001,8 +1013,8 @@ class ProxDataHelper(object):
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
+ 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
@@ -1014,7 +1026,7 @@ class ProxDataHelper(object):
return self.totals_and_pps[1]
@property
- def pps(self):
+ def requested_pps(self):
return self.totals_and_pps[2]
@property
@@ -1055,7 +1067,7 @@ class ProxDataHelper(object):
self.latency,
self.rx_total,
self.tx_total,
- self.pps,
+ self.requested_pps,
)
self.result_tuple.log_data()
@@ -1134,6 +1146,7 @@ class ProxProfileHelper(object):
self.sut.set_pkt_size(self.test_cores, pkt_size)
self.sut.set_speed(self.test_cores, value)
self.sut.start_all()
+ time.sleep(1)
yield
finally:
self.sut.stop_all()
@@ -1246,6 +1259,7 @@ class ProxMplsProfileHelper(ProxProfileHelper):
ratio = 1.0 * (pkt_size - 4 + 20) / (pkt_size + 20)
self.sut.set_speed(self.plain_cores, value * ratio)
self.sut.start_all()
+ time.sleep(1)
yield
finally:
self.sut.stop_all()
diff --git a/yardstick/network_services/vnf_generic/vnf/prox_vnf.py b/yardstick/network_services/vnf_generic/vnf/prox_vnf.py
index 285e08659..36f1a19d0 100644
--- a/yardstick/network_services/vnf_generic/vnf/prox_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/prox_vnf.py
@@ -15,8 +15,6 @@
import errno
import logging
import datetime
-import time
-
from yardstick.common.process import check_if_process_failed
from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxDpdkVnfSetupEnvHelper
@@ -44,7 +42,8 @@ class ProxApproxVnf(SampleVNF):
self.prev_packets_in = 0
self.prev_packets_sent = 0
- self.prev_time = time.time()
+ self.prev_tsc = 0
+ self.tsc_hz = 0
super(ProxApproxVnf, self).__init__(name, vnfd, setup_env_helper_type,
resource_helper_type)
@@ -68,8 +67,7 @@ class ProxApproxVnf(SampleVNF):
def collect_kpi(self):
# we can't get KPIs if the VNF is down
- check_if_process_failed(self._vnf_process)
-
+ check_if_process_failed(self._vnf_process, 0.01)
if self.resource_helper is None:
result = {
"packets_in": 0,
@@ -79,6 +77,12 @@ class ProxApproxVnf(SampleVNF):
}
return result
+ if (self.tsc_hz == 0):
+ self.tsc_hz = float(self.resource_helper.sut.hz())
+ LOG.debug("TSC = %f", self.tsc_hz)
+ if (self.tsc_hz == 0):
+ raise RuntimeError("Unable to retrieve TSC")
+
# use all_ports so we only use ports matched in topology
port_count = len(self.vnfd_helper.port_pairs.all_ports)
if port_count not in {1, 2, 4}:
@@ -86,10 +90,10 @@ class ProxApproxVnf(SampleVNF):
"1, 2 or 4 ports only supported at this time")
self.port_stats = self.vnf_execute('port_stats', range(port_count))
- curr_time = time.time()
try:
rx_total = self.port_stats[6]
tx_total = self.port_stats[7]
+ tsc = self.port_stats[10]
except IndexError:
LOG.debug("port_stats parse fail ")
# return empty dict so we don't mess up existing KPIs
@@ -103,15 +107,17 @@ 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))
+ curr_packets_in = int(((rx_total - self.prev_packets_in) * self.tsc_hz)
+ / (tsc - self.prev_tsc) * port_count)
+ curr_packets_fwd = int(((tx_total - self.prev_packets_sent) * self.tsc_hz)
+ / (tsc - self.prev_tsc) * port_count)
result["curr_packets_in"] = curr_packets_in
result["curr_packets_fwd"] = curr_packets_fwd
self.prev_packets_in = rx_total
self.prev_packets_sent = tx_total
- self.prev_time = curr_time
+ self.prev_tsc = tsc
LOG.debug("%s collect KPIs %s %s", self.APP_NAME, datetime.datetime.now(), result)
return result
diff --git a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
index 16873611e..ef8b3f126 100644
--- a/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
+++ b/yardstick/network_services/vnf_generic/vnf/sample_vnf.py
@@ -825,7 +825,7 @@ class SampleVNF(GenericVNF):
def collect_kpi(self):
# we can't get KPIs if the VNF is down
- check_if_process_failed(self._vnf_process)
+ check_if_process_failed(self._vnf_process, 0.01)
stats = self.get_stats()
m = re.search(self.COLLECT_KPI, stats, re.MULTILINE)
if m:
diff --git a/yardstick/tests/unit/network_services/traffic_profile/test_prox_binsearch.py b/yardstick/tests/unit/network_services/traffic_profile/test_prox_binsearch.py
index 58343ffb2..7bfd67fe0 100644
--- a/yardstick/tests/unit/network_services/traffic_profile/test_prox_binsearch.py
+++ b/yardstick/tests/unit/network_services/traffic_profile/test_prox_binsearch.py
@@ -65,9 +65,10 @@ class TestProxBinSearchProfile(unittest.TestCase):
self.assertEqual(len(runs), 7)
# Result Samples inc theor_max
- result_tuple = {"Result_Actual_throughput": 7.5e-07,
- "Result_theor_max_throughput": 1.234e-10,
- "Result_pktSize": 200}
+ result_tuple = {'Result_Actual_throughput': 5e-07,
+ 'Result_theor_max_throughput': 0.00012340000000000002,
+ 'Result_pktSize': 200}
+
profile.queue.put.assert_called_with(result_tuple)
success_result_tuple = {"Success_CurrentDropPackets": 0.5,