diff options
Diffstat (limited to 'yardstick/network_services')
4 files changed, 86 insertions, 102 deletions
diff --git a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py index a8464e936..393f60f7c 100644 --- a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py +++ b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py @@ -17,6 +17,7 @@ import logging import IxNetwork from yardstick.common import exceptions +from yardstick.common import utils log = logging.getLogger(__name__) @@ -34,6 +35,9 @@ PROTO_VLAN = 'vlan' IP_VERSION_4_MASK = '0.0.0.255' IP_VERSION_6_MASK = '0:0:0:0:0:0:0:ff' +TRAFFIC_STATUS_STARTED = 'started' +TRAFFIC_STATUS_STOPPED = 'stopped' + # NOTE(ralonsoh): this pragma will be removed in the last patch of this series class IxNextgen(object): # pragma: no cover @@ -141,6 +145,19 @@ class IxNextgen(object): # pragma: no cover raise exceptions.IxNetworkFieldNotPresentInStackItem( field_name=field_name, stack_item=stack_item) + def _get_traffic_state(self): + """Get traffic state""" + return self.ixnet.getAttribute(self.ixnet.getRoot() + 'traffic', + '-state') + + def is_traffic_running(self): + """Returns true if traffic state == TRAFFIC_STATUS_STARTED""" + return self._get_traffic_state() == TRAFFIC_STATUS_STARTED + + def is_traffic_stopped(self): + """Returns true if traffic state == TRAFFIC_STATUS_STOPPED""" + return self._get_traffic_state() == TRAFFIC_STATUS_STOPPED + @staticmethod def _parse_framesize(framesize): """Parse "framesize" config param. to return a list of weighted pairs @@ -435,15 +452,19 @@ class IxNextgen(object): # pragma: no cover return stats def start_traffic(self): - tis = self.ixnet.getList('/traffic', 'trafficItem') - for ti in tis: - self.ixnet.execute('generate', [ti]) - self.ixnet.execute('apply', '/traffic') - self.ixnet.execute('start', '/traffic') - - # NOTE(ralonsoh): to be updated in next patchset - # pragma: no cover - def ix_stop_traffic(self): - tis = self.ixnet.getList('/traffic', 'trafficItem') - for _ in tis: + """Start the traffic injection in the traffic item + + By configuration, there is only one traffic item. This function returns + when the traffic state is TRAFFIC_STATUS_STARTED. + """ + traffic_items = self.ixnet.getList('/traffic', 'trafficItem') + if self.is_traffic_running(): self.ixnet.execute('stop', '/traffic') + # pylint: disable=unnecessary-lambda + utils.wait_until_true(lambda: self.is_traffic_stopped()) + + self.ixnet.execute('generate', traffic_items) + self.ixnet.execute('apply', '/traffic') + self.ixnet.execute('start', '/traffic') + # pylint: disable=unnecessary-lambda + utils.wait_until_true(lambda: self.is_traffic_running()) diff --git a/yardstick/network_services/traffic_profile/base.py b/yardstick/network_services/traffic_profile/base.py index 162bab2bc..9eba550aa 100644 --- a/yardstick/network_services/traffic_profile/base.py +++ b/yardstick/network_services/traffic_profile/base.py @@ -44,7 +44,7 @@ class TrafficProfile(object): # IMIX = {"10K": 0.1, "100M": 0.5} self.params = tp_config - def execute_traffic(self, traffic_generator): + def execute_traffic(self, traffic_generator, **kawrgs): """ This methods defines the behavior of the traffic generator. It will be called in a loop until the traffic generator exits. diff --git a/yardstick/network_services/traffic_profile/ixia_rfc2544.py b/yardstick/network_services/traffic_profile/ixia_rfc2544.py index 453c58622..73806f958 100644 --- a/yardstick/network_services/traffic_profile/ixia_rfc2544.py +++ b/yardstick/network_services/traffic_profile/ixia_rfc2544.py @@ -12,7 +12,6 @@ # See the License for the specific language governing permissions and # limitations under the License. -from __future__ import absolute_import import logging from yardstick.network_services.traffic_profile.trex_traffic_profile import \ @@ -82,12 +81,10 @@ class IXIARFC2544Profile(TrexProfile): def _ixia_traffic_generate(self, traffic, ixia_obj): for key, value in traffic.items(): if key.startswith((self.UPLINK, self.DOWNLINK)): - value["iload"] = str(self.rate) + value['iload'] = str(self.rate) ixia_obj.update_frame(traffic) ixia_obj.update_ip_packet(traffic) ixia_obj.start_traffic() - self.tmp_drop = 0 - self.tmp_throughput = 0 def update_traffic_profile(self, traffic_generator): def port_generator(): @@ -105,78 +102,59 @@ class IXIARFC2544Profile(TrexProfile): self.ports = [port for port in port_generator()] - def execute_traffic(self, traffic_generator, ixia_obj, mac=None): - if mac is None: - mac = {} + def execute_traffic(self, traffic_generator, ixia_obj=None, mac=None): + mac = {} if mac is None else mac + first_run = self.first_run if self.first_run: + self.first_run = False self.full_profile = {} self.pg_id = 0 self.update_traffic_profile(traffic_generator) - traffic = \ - self._get_ixia_traffic_profile(self.full_profile, mac) self.max_rate = self.rate self.min_rate = 0 - self.get_multiplier() - self._ixia_traffic_generate(traffic, ixia_obj) - - def get_multiplier(self): - self.rate = round((self.max_rate + self.min_rate) / 2.0, 2) - multiplier = round(self.rate / self.pps, 2) - return str(multiplier) + else: + self.rate = round(float(self.max_rate + self.min_rate) / 2.0, 2) - def start_ixia_latency(self, traffic_generator, ixia_obj, mac=None): - if mac is None: - mac = {} - self.update_traffic_profile(traffic_generator) - traffic = \ - self._get_ixia_traffic_profile(self.full_profile, mac) + traffic = self._get_ixia_traffic_profile(self.full_profile, mac) self._ixia_traffic_generate(traffic, ixia_obj) + return first_run - def get_drop_percentage(self, samples, tol_min, tolerance, ixia_obj, - mac=None): - if mac is None: - mac = {} - status = 'Running' + def get_drop_percentage(self, samples, tol_min, tolerance, duration=30.0, + first_run=False): + completed = False drop_percent = 100 - in_packets = sum([samples[iface]['in_packets'] for iface in samples]) - out_packets = sum([samples[iface]['out_packets'] for iface in samples]) - rx_throughput = \ - sum([samples[iface]['RxThroughput'] for iface in samples]) - tx_throughput = \ - sum([samples[iface]['TxThroughput'] for iface in samples]) - packet_drop = abs(out_packets - in_packets) + num_ifaces = len(samples) + in_packets_sum = sum( + [samples[iface]['in_packets'] for iface in samples]) + out_packets_sum = sum( + [samples[iface]['out_packets'] for iface in samples]) + rx_throughput = sum( + [samples[iface]['RxThroughput'] for iface in samples]) + rx_throughput = round(float(rx_throughput), 2) + tx_throughput = sum( + [samples[iface]['TxThroughput'] for iface in samples]) + tx_throughput = round(float(tx_throughput), 2) + packet_drop = abs(out_packets_sum - in_packets_sum) + try: - drop_percent = round((packet_drop / float(out_packets)) * 100, 2) + drop_percent = round( + (packet_drop / float(out_packets_sum)) * 100, 2) except ZeroDivisionError: LOG.info('No traffic is flowing') - samples['TxThroughput'] = round(tx_throughput / 1.0, 2) - samples['RxThroughput'] = round(rx_throughput / 1.0, 2) - samples['CurrentDropPercentage'] = drop_percent - samples['Throughput'] = self.tmp_throughput - samples['DropPercentage'] = self.tmp_drop - if drop_percent > tolerance and self.tmp_throughput == 0: - samples['Throughput'] = round(rx_throughput / 1.0, 2) - samples['DropPercentage'] = drop_percent - if self.first_run: - max_supported_rate = out_packets / 30.0 - self.rate = max_supported_rate - self.first_run = False - if drop_percent <= tolerance: - status = 'Completed' + + samples['TxThroughput'] = tx_throughput + samples['RxThroughput'] = rx_throughput + samples['DropPercentage'] = drop_percent + + if first_run: + self.rate = out_packets_sum / duration / num_ifaces + completed = True if drop_percent <= tolerance else False + if drop_percent > tolerance: self.max_rate = self.rate elif drop_percent < tol_min: self.min_rate = self.rate - if drop_percent >= self.tmp_drop: - self.tmp_drop = drop_percent - self.tmp_throughput = round((rx_throughput / 1.0), 2) - samples['Throughput'] = round(rx_throughput / 1.0, 2) - samples['DropPercentage'] = drop_percent else: - samples['Throughput'] = round(rx_throughput / 1.0, 2) - samples['DropPercentage'] = drop_percent - return status, samples - self.get_multiplier() - traffic = self._get_ixia_traffic_profile(self.full_profile, mac) - self._ixia_traffic_generate(traffic, ixia_obj) - return status, samples + completed = True + + return completed, samples diff --git a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py index deb0a8023..2010546e7 100644 --- a/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py +++ b/yardstick/network_services/vnf_generic/vnf/tg_rfc2544_ixia.py @@ -12,12 +12,12 @@ # See the License for the specific language governing permissions and # limitations under the License. -import time import os import logging import sys from yardstick.common import exceptions +from yardstick.common import utils from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNFTrafficGen from yardstick.network_services.vnf_generic.vnf.sample_vnf import ClientResourceHelper from yardstick.network_services.vnf_generic.vnf.sample_vnf import Rfc2544ResourceHelper @@ -135,43 +135,28 @@ class IxiaResourceHelper(ClientResourceHelper): mac["src_mac_{}".format(port_num)] = virt_intf.get("local_mac", default) mac["dst_mac_{}".format(port_num)] = virt_intf.get("dst_mac", default) - samples = {} - # Generate ixia traffic config... try: while not self._terminated.value: - traffic_profile.execute_traffic(self, self.client, mac) + first_run = traffic_profile.execute_traffic( + self, self.client, mac) self.client_started.value = 1 - time.sleep(WAIT_FOR_TRAFFIC) - self.client.ix_stop_traffic() + # pylint: disable=unnecessary-lambda + utils.wait_until_true(lambda: self.client.is_traffic_stopped()) samples = self.generate_samples(traffic_profile.ports) + + # NOTE(ralonsoh): the traffic injection duration is fixed to 30 + # seconds. This parameter is configurable and must be retrieved + # from the traffic_profile.full_profile information. + # Every flow must have the same duration. + completed, samples = traffic_profile.get_drop_percentage( + samples, min_tol, max_tol, first_run=first_run) self._queue.put(samples) - status, samples = traffic_profile.get_drop_percentage(samples, min_tol, - max_tol, self.client, mac) - current = samples['CurrentDropPercentage'] - if min_tol <= current <= max_tol or status == 'Completed': + if completed: self._terminated.value = 1 - self.client.ix_stop_traffic() - self._queue.put(samples) - - if not self.rfc_helper.is_done(): - self._terminated.value = 1 - return - - traffic_profile.execute_traffic(self, self.client, mac) - for _ in range(5): - time.sleep(self.LATENCY_TIME_SLEEP) - self.client.ix_stop_traffic() - samples = self.generate_samples(traffic_profile.ports, 'latency', {}) - self._queue.put(samples) - traffic_profile.start_ixia_latency(self, self.client, mac) - if self._terminated.value: - break - - self.client.ix_stop_traffic() except Exception: # pylint: disable=broad-except - LOG.exception("Run Traffic terminated") + LOG.exception('Run Traffic terminated') self._terminated.value = 1 |