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 fill_samples(samples, traffic_gen):
33 for vpci_idx, intf in enumerate(traffic_gen.vpci_if_name_ascending):
35 # TODO: VNFDs KPIs values needs to be mapped to TRex structure
36 xe_port = traffic_gen.resource_helper.sut.port_stats([vpci_idx])
38 "in_packets": xe_port[6],
39 "out_packets": xe_port[7],
42 def __init__(self, tp_config):
43 super(ProxProfile, self).__init__(tp_config)
48 # TODO: get init values from tp_config
49 self.prox_config = tp_config["traffic_profile"]
50 self.pkt_sizes = [int(x) for x in self.prox_config.get("packet_sizes", [])]
51 self.pkt_size_iterator = iter(self.pkt_sizes)
52 self.duration = int(self.prox_config.get("duration", 5))
53 self.precision = float(self.prox_config.get('test_precision', 1.0))
54 self.tolerated_loss = float(self.prox_config.get('tolerated_loss', 0.0))
56 # TODO: is this ever a function of packet size?
57 self.lower_bound = float(self.prox_config.get('lower_bound', 10.0))
58 self.upper_bound = float(self.prox_config.get('upper_bound', 100.0))
59 self.step_value = float(self.prox_config.get('step_value', 10.0))
60 self._profile_helper = None
62 def make_profile_helper(self, traffic_gen):
63 if self._profile_helper is None:
64 self._profile_helper = ProxProfileHelper.make_profile_helper(traffic_gen)
65 return self._profile_helper
67 def init(self, queue):
68 self.pkt_size_iterator = iter(self.pkt_sizes)
70 self.queue.cancel_join_thread()
72 def bounds_iterator(self, logger=None):
74 logger.debug("Interval [%s, %s), step: %d", self.lower_bound,
75 self.upper_bound, self.step_value)
77 test_value = self.lower_bound
78 while test_value <= self.upper_bound:
80 logger.info("Testing with value %s", test_value)
82 test_value += self.step_value
85 def min_pkt_size(self):
86 """Return the minimum required packet size for the test.
88 Defaults to 64. Individual test must override this method if they have
92 int. The minimum required packet size for the test.
96 def run_test_with_pkt_size(self, traffic_generator, pkt_size, duration):
97 raise NotImplementedError
99 def execute_traffic(self, traffic_generator):
100 self.make_profile_helper(traffic_generator)
103 pkt_size = next(self.pkt_size_iterator)
104 except StopIteration:
108 # Adjust packet size upwards if it's less than the minimum
109 # required packet size for the test.
110 if pkt_size < self.min_pkt_size:
111 pkt_size += self.min_pkt_size - 64
113 duration = self.duration
114 self.run_test_with_pkt_size(traffic_generator, pkt_size, duration)