1 # Copyright (c) 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.
19 from yardstick.common.process import check_if_process_failed
20 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxDpdkVnfSetupEnvHelper
21 from yardstick.network_services.vnf_generic.vnf.prox_helpers import ProxResourceHelper
22 from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF
23 from yardstick.network_services import constants
24 from yardstick.benchmark.contexts import base as context_base
26 LOG = logging.getLogger(__name__)
29 class ProxApproxVnf(SampleVNF):
33 PROX_MODE = "Workload"
34 VNF_PROMPT = "PROX started"
35 LUA_PARAMETER_NAME = "sut"
37 def __init__(self, name, vnfd, task_id, setup_env_helper_type=None,
38 resource_helper_type=None):
39 if setup_env_helper_type is None:
40 setup_env_helper_type = ProxDpdkVnfSetupEnvHelper
42 if resource_helper_type is None:
43 resource_helper_type = ProxResourceHelper
45 self.prev_packets_in = 0
46 self.prev_packets_sent = 0
49 super(ProxApproxVnf, self).__init__(
50 name, vnfd, task_id, setup_env_helper_type, resource_helper_type)
52 def _vnf_up_post(self):
53 self.resource_helper.up_post()
55 def vnf_execute(self, cmd, *args, **kwargs):
56 # try to execute with socket commands
57 # ignore socket errors, e.g. when using force_quit
58 ignore_errors = kwargs.pop("_ignore_errors", False)
60 return self.resource_helper.execute(cmd, *args, **kwargs)
62 if e.errno in {errno.EPIPE, errno.ESHUTDOWN, errno.ECONNRESET}:
64 LOG.debug("ignoring vnf_execute exception %s for command %s", e, cmd)
70 def collect_kpi(self):
71 # we can't get KPIs if the VNF is down
72 check_if_process_failed(self._vnf_process, 0.01)
74 physical_node = context_base.Context.get_physical_node_from_server(
75 self.scenario_helper.nodes[self.name])
77 result = {"physical_node": physical_node}
79 if self.resource_helper is None:
84 "collect_stats": {"core": {}},
88 if (self.tsc_hz == 0):
89 self.tsc_hz = float(self.resource_helper.sut.hz())
90 LOG.debug("TSC = %f", self.tsc_hz)
91 if (self.tsc_hz == 0):
92 raise RuntimeError("Unable to retrieve TSC")
94 # use all_ports so we only use ports matched in topology
95 port_count = len(self.vnfd_helper.port_pairs.all_ports)
96 if port_count not in {1, 2, 4}:
97 raise RuntimeError("Failed ..Invalid no of ports .. "
98 "1, 2 or 4 ports only supported at this time")
100 all_port_stats = self.vnf_execute('multi_port_stats', range(port_count))
101 rx_total = tx_total = tsc = 0
103 for single_port_stats in all_port_stats:
104 rx_total = rx_total + single_port_stats[1]
105 tx_total = tx_total + single_port_stats[2]
106 tsc = tsc + single_port_stats[5]
107 except (TypeError, IndexError):
108 LOG.error("Invalid data ...")
111 tsc = tsc / port_count
114 "packets_in": rx_total,
115 "packets_dropped": max((tx_total - rx_total), 0),
116 "packets_fwd": tx_total,
117 # we share ProxResourceHelper with TG, but we want to collect
118 # collectd KPIs here and not TG KPIs, so use a different method name
119 "collect_stats": self.resource_helper.collect_collectd_kpi(),
122 curr_packets_in = int(((rx_total - self.prev_packets_in) * self.tsc_hz)
123 / (tsc - self.prev_tsc))
124 except ZeroDivisionError:
125 LOG.error("Error.... Divide by Zero")
129 curr_packets_fwd = int(((tx_total - self.prev_packets_sent) * self.tsc_hz)
130 / (tsc - self.prev_tsc))
131 except ZeroDivisionError:
132 LOG.error("Error.... Divide by Zero")
135 result["curr_packets_in"] = curr_packets_in
136 result["curr_packets_fwd"] = curr_packets_fwd
138 self.prev_packets_in = rx_total
139 self.prev_packets_sent = tx_total
142 LOG.debug("%s collect KPIs %s %s", self.APP_NAME, datetime.datetime.now(), result)
145 def _tear_down(self):
146 # this should be standardized for all VNFs or removed
147 self.setup_helper.tear_down()
150 # stop collectd first or we get pika errors?
151 self.resource_helper.stop_collect()
152 # try to quit with socket commands
153 # pkill is not matching, debug with pgrep
154 self.ssh_helper.execute("sudo pgrep -lax %s" % self.setup_helper.APP_NAME)
155 self.ssh_helper.execute("sudo ps aux | grep -i %s" % self.setup_helper.APP_NAME)
156 if self._vnf_process.is_alive():
157 self.vnf_execute("stop_all")
158 self.vnf_execute("quit")
159 # hopefully quit succeeds and socket closes, so ignore force_quit socket errors
160 self.vnf_execute("force_quit", _ignore_errors=True)
161 self.setup_helper.kill_vnf()
163 if self._vnf_process is not None:
164 LOG.debug("joining before terminate %s", self._vnf_process.name)
165 self._vnf_process.join(constants.PROCESS_JOIN_TIMEOUT)
166 self._vnf_process.terminate()