1 # Copyright (c) 2016-2018 Intel Corporation
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 """ Fixed traffic profile definitions """
16 from __future__ import absolute_import
19 import multiprocessing
22 from yardstick.network_services.traffic_profile.base import TrafficProfile
23 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxProfileHelper
25 LOG = logging.getLogger(__name__)
28 class ProxProfile(TrafficProfile):
30 This profile adds a single stream at the beginning of the traffic session
34 def sort_vpci(traffic_gen):
35 """Return the list of external interfaces ordered by vpci and name
37 :param traffic_gen: (ProxTrafficGen) traffic generator
38 :return: list of ordered interfaces
40 def key_func(interface):
41 return interface['virtual-interface']['vpci'], interface['name']
43 return sorted(traffic_gen.vnfd_helper['vdu'][0]['external-interface'],
47 def fill_samples(samples, traffic_gen):
48 vpci_if_name_ascending = ProxProfile.sort_vpci(traffic_gen)
49 for vpci_idx, intf in enumerate(vpci_if_name_ascending):
51 # TODO: VNFDs KPIs values needs to be mapped to TRex structure
52 xe_port = traffic_gen.resource_helper.sut.port_stats([vpci_idx])
54 "in_packets": xe_port[6],
55 "out_packets": xe_port[7],
58 def __init__(self, tp_config):
59 super(ProxProfile, self).__init__(tp_config)
61 self.done = multiprocessing.Event()
64 # TODO: get init values from tp_config
65 self.prox_config = tp_config["traffic_profile"]
66 self.pkt_sizes = [int(x) for x in self.prox_config.get("packet_sizes", [])]
67 self.pkt_size_iterator = iter(self.pkt_sizes)
68 self.duration = int(self.prox_config.get("duration", 5))
69 self.precision = float(self.prox_config.get('test_precision', 1.0))
70 self.tolerated_loss = float(self.prox_config.get('tolerated_loss', 0.0))
72 # TODO: is this ever a function of packet size?
73 self.lower_bound = float(self.prox_config.get('lower_bound', 10.0))
74 self.upper_bound = float(self.prox_config.get('upper_bound', 100.0))
75 self.step_value = float(self.prox_config.get('step_value', 10.0))
76 self._profile_helper = None
78 def make_profile_helper(self, traffic_gen):
79 if self._profile_helper is None:
80 self._profile_helper = ProxProfileHelper.make_profile_helper(traffic_gen)
81 return self._profile_helper
83 def init(self, queue):
84 self.pkt_size_iterator = iter(self.pkt_sizes)
86 self.queue.cancel_join_thread()
88 def bounds_iterator(self, logger=None):
90 logger.debug("Interval [%s, %s), step: %d", self.lower_bound,
91 self.upper_bound, self.step_value)
93 test_value = self.lower_bound
94 while test_value <= self.upper_bound:
96 logger.info("Testing with value %s", test_value)
98 test_value += self.step_value
101 def min_pkt_size(self):
102 """Return the minimum required packet size for the test.
104 Defaults to 64. Individual test must override this method if they have
108 int. The minimum required packet size for the test.
112 def run_test_with_pkt_size(self, traffic_generator, pkt_size, duration):
113 raise NotImplementedError
115 def execute_traffic(self, traffic_generator):
116 self.make_profile_helper(traffic_generator)
119 pkt_size = next(self.pkt_size_iterator)
120 except StopIteration:
125 # Adjust packet size upwards if it's less than the minimum
126 # required packet size for the test.
127 if pkt_size < self.min_pkt_size:
128 pkt_size += self.min_pkt_size - 64
130 duration = self.duration
131 self.run_test_with_pkt_size(traffic_generator, pkt_size, duration)