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
20 from yardstick.network_services.traffic_profile.base import TrafficProfile
21 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxProfileHelper
23 LOG = logging.getLogger(__name__)
26 class ProxProfile(TrafficProfile):
28 This profile adds a single stream at the beginning of the traffic session
32 def sort_vpci(traffic_gen):
33 """Return the list of external interfaces ordered by vpci and name
35 :param traffic_gen: (ProxTrafficGen) traffic generator
36 :return: list of ordered interfaces
38 def key_func(interface):
39 return interface['virtual-interface']['vpci'], interface['name']
41 return sorted(traffic_gen.vnfd_helper['vdu'][0]['external-interface'],
45 def fill_samples(samples, traffic_gen):
46 vpci_if_name_ascending = ProxProfile.sort_vpci(traffic_gen)
47 for vpci_idx, intf in enumerate(vpci_if_name_ascending):
49 # TODO: VNFDs KPIs values needs to be mapped to TRex structure
50 xe_port = traffic_gen.resource_helper.sut.port_stats([vpci_idx])
52 "in_packets": xe_port[6],
53 "out_packets": xe_port[7],
56 def __init__(self, tp_config):
57 super(ProxProfile, self).__init__(tp_config)
62 # TODO: get init values from tp_config
63 self.prox_config = tp_config["traffic_profile"]
64 self.pkt_sizes = [int(x) for x in self.prox_config.get("packet_sizes", [])]
65 self.pkt_size_iterator = iter(self.pkt_sizes)
66 self.duration = int(self.prox_config.get("duration", 5))
67 self.precision = float(self.prox_config.get('test_precision', 1.0))
68 self.tolerated_loss = float(self.prox_config.get('tolerated_loss', 0.0))
70 # TODO: is this ever a function of packet size?
71 self.lower_bound = float(self.prox_config.get('lower_bound', 10.0))
72 self.upper_bound = float(self.prox_config.get('upper_bound', 100.0))
73 self.step_value = float(self.prox_config.get('step_value', 10.0))
74 self._profile_helper = None
76 def make_profile_helper(self, traffic_gen):
77 if self._profile_helper is None:
78 self._profile_helper = ProxProfileHelper.make_profile_helper(traffic_gen)
79 return self._profile_helper
81 def init(self, queue):
82 self.pkt_size_iterator = iter(self.pkt_sizes)
84 self.queue.cancel_join_thread()
86 def bounds_iterator(self, logger=None):
88 logger.debug("Interval [%s, %s), step: %d", self.lower_bound,
89 self.upper_bound, self.step_value)
91 test_value = self.lower_bound
92 while test_value <= self.upper_bound:
94 logger.info("Testing with value %s", test_value)
96 test_value += self.step_value
99 def min_pkt_size(self):
100 """Return the minimum required packet size for the test.
102 Defaults to 64. Individual test must override this method if they have
106 int. The minimum required packet size for the test.
110 def run_test_with_pkt_size(self, traffic_generator, pkt_size, duration):
111 raise NotImplementedError
113 def execute_traffic(self, traffic_generator):
114 self.make_profile_helper(traffic_generator)
117 pkt_size = next(self.pkt_size_iterator)
118 except StopIteration:
122 # Adjust packet size upwards if it's less than the minimum
123 # required packet size for the test.
124 if pkt_size < self.min_pkt_size:
125 pkt_size += self.min_pkt_size - 64
127 duration = self.duration
128 self.run_test_with_pkt_size(traffic_generator, pkt_size, duration)