1 # Copyright (c) 2016-2017 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
21 from yardstick.network_services.traffic_profile.base import TrafficProfile
22 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxProfileHelper
24 LOG = logging.getLogger(__name__)
27 class ProxProfile(TrafficProfile):
29 This profile adds a single stream at the beginning of the traffic session
33 def sort_vpci(traffic_gen):
34 """Return the list of external interfaces ordered by vpci and name
36 :param traffic_gen: (ProxTrafficGen) traffic generator
37 :return: list of ordered interfaces
39 def key_func(interface):
40 return interface['virtual-interface']['vpci'], interface['name']
42 return sorted(traffic_gen.vnfd_helper['vdu'][0]['external-interface'],
46 def fill_samples(samples, traffic_gen):
47 vpci_if_name_ascending = ProxProfile.sort_vpci(traffic_gen)
48 for vpci_idx, intf in enumerate(vpci_if_name_ascending):
50 # TODO: VNFDs KPIs values needs to be mapped to TRex structure
51 xe_port = traffic_gen.resource_helper.sut.port_stats([vpci_idx])
53 "in_packets": xe_port[6],
54 "out_packets": xe_port[7],
57 def __init__(self, tp_config):
58 super(ProxProfile, self).__init__(tp_config)
60 self.done = multiprocessing.Event()
63 # TODO: get init values from tp_config
64 self.prox_config = tp_config["traffic_profile"]
65 self.pkt_sizes = [int(x) for x in self.prox_config.get("packet_sizes", [])]
66 self.pkt_size_iterator = iter(self.pkt_sizes)
67 self.duration = int(self.prox_config.get("duration", 5))
68 self.precision = float(self.prox_config.get('test_precision', 1.0))
69 self.tolerated_loss = float(self.prox_config.get('tolerated_loss', 0.0))
71 # TODO: is this ever a function of packet size?
72 self.lower_bound = float(self.prox_config.get('lower_bound', 10.0))
73 self.upper_bound = float(self.prox_config.get('upper_bound', 100.0))
74 self.step_value = float(self.prox_config.get('step_value', 10.0))
75 self._profile_helper = None
77 def make_profile_helper(self, traffic_gen):
78 if self._profile_helper is None:
79 self._profile_helper = ProxProfileHelper.make_profile_helper(traffic_gen)
80 return self._profile_helper
82 def init(self, queue):
83 self.pkt_size_iterator = iter(self.pkt_sizes)
85 self.queue.cancel_join_thread()
87 def bounds_iterator(self, logger=None):
89 logger.debug("Interval [%s, %s), step: %d", self.lower_bound,
90 self.upper_bound, self.step_value)
92 test_value = self.lower_bound
93 while test_value <= self.upper_bound:
95 logger.info("Testing with value %s", test_value)
97 test_value += self.step_value
100 def min_pkt_size(self):
101 """Return the minimum required packet size for the test.
103 Defaults to 64. Individual test must override this method if they have
107 int. The minimum required packet size for the test.
111 def run_test_with_pkt_size(self, traffic_generator, pkt_size, duration):
112 raise NotImplementedError
114 def execute_traffic(self, traffic_generator):
115 self.make_profile_helper(traffic_generator)
118 pkt_size = next(self.pkt_size_iterator)
119 except StopIteration:
123 # Adjust packet size upwards if it's less than the minimum
124 # required packet size for the test.
125 if pkt_size < self.min_pkt_size:
126 pkt_size += self.min_pkt_size - 64
128 duration = self.duration
129 self.run_test_with_pkt_size(traffic_generator, pkt_size, duration)