diff options
Diffstat (limited to 'resources/libraries/python/TrafficGenerator.py')
| -rw-r--r-- | resources/libraries/python/TrafficGenerator.py | 103 |
1 files changed, 97 insertions, 6 deletions
diff --git a/resources/libraries/python/TrafficGenerator.py b/resources/libraries/python/TrafficGenerator.py index 36a83851cb..b5558e663d 100644 --- a/resources/libraries/python/TrafficGenerator.py +++ b/resources/libraries/python/TrafficGenerator.py @@ -457,6 +457,85 @@ class TrafficGenerator(AbstractMeasurer): self._latency.append(self._result.split(', ')[4].split('=')[1]) self._latency.append(self._result.split(', ')[5].split('=')[1]) + def trex_stl_start_unidirection(self, duration, rate, framesize, + traffic_type, tx_port=0, rx_port=1, + async_call=False, latency=False, + warmup_time=5.0): + """Execute script on remote node over ssh to start unidirection traffic. + The purpose of this function is to support performance test that need to + measure unidirectional traffic, e.g. Load balancer maglev mode and l3dsr + mode test. + + :param duration: Time expresed in seconds for how long to send traffic. + :param rate: Traffic rate expressed with units (pps, %) + :param framesize: L2 frame size to send (without padding and IPG). + :param traffic_type: Module name as a traffic type identifier. + See resources/traffic_profiles/trex for implemented modules. + :param tx_port: Traffic generator transmit port. + :param rx_port: Traffic generator receive port. + :param latency: With latency measurement. + :param async_call: If enabled then don't wait for all incomming trafic. + :param warmup_time: Warmup time period. + :type duration: float + :type rate: str + :type framesize: str + :type traffic_type: str + :type tx_port: integer + :type rx_port: integer + :type latency: bool + :type async_call: bool + :type warmup_time: float + :returns: Nothing + :raises RuntimeError: In case of TG driver issue. + """ + ssh = SSH() + ssh.connect(self._node) + + _latency = "--latency" if latency else "" + _async = "--async" if async_call else "" + + profile_path = ("{0}/resources/traffic_profiles/trex/" + "{1}.py".format(Constants.REMOTE_FW_DIR, + traffic_type)) + (ret, stdout, _) = ssh.exec_command( + "sh -c " + "'{0}/resources/tools/trex/trex_stateless_profile.py " + "--profile {1} " + "--duration {2} " + "--frame_size {3} " + "--rate {4} " + "--warmup_time {5} " + "--port_0 {6} " + "--port_1 {7} " + "{8} " # --async + "{9} " # --latency + "{10}'". # --unidirection + format(Constants.REMOTE_FW_DIR, profile_path, duration, framesize, + rate, warmup_time, tx_port, rx_port, _async, _latency, + "--unidirection"), + timeout=float(duration) + 60) + + if int(ret) != 0: + raise RuntimeError('TRex unidirection runtime error') + elif async_call: + #no result + self._received = None + self._sent = None + self._loss = None + self._latency = None + else: + # last line from console output + line = stdout.splitlines()[-1] + + self._result = line + logger.info('TrafficGen result: {0}'.format(self._result)) + + self._received = self._result.split(', ')[1].split('=')[1] + self._sent = self._result.split(', ')[2].split('=')[1] + self._loss = self._result.split(', ')[3].split('=')[1] + self._latency = [] + self._latency.append(self._result.split(', ')[4].split('=')[1]) + def stop_traffic_on_tg(self): """Stop all traffic on TG. @@ -468,9 +547,9 @@ class TrafficGenerator(AbstractMeasurer): if self._node['subtype'] == NodeSubTypeTG.TREX: self.trex_stl_stop_remote_exec(self._node) - def send_traffic_on_tg(self, duration, rate, framesize, - traffic_type, warmup_time=5, async_call=False, - latency=True): + def send_traffic_on_tg(self, duration, rate, framesize, traffic_type, + unidirection=False, tx_port=0, rx_port=1, + warmup_time=5, async_call=False, latency=True): """Send traffic from all configured interfaces on TG. :param duration: Duration of test traffic generation in seconds. @@ -478,6 +557,9 @@ class TrafficGenerator(AbstractMeasurer): :param framesize: Frame size (L2) in Bytes. :param traffic_type: Module name as a traffic type identifier. See resources/traffic_profiles/trex for implemented modules. + :param unidirection: Traffic is unidirectional. + :param tx_port: Traffic generator transmit port. + :param rx_port: Traffic generator receive port. :param warmup_time: Warmup phase in seconds. :param async_call: Async mode. :param latency: With latency measurement. @@ -485,6 +567,9 @@ class TrafficGenerator(AbstractMeasurer): :type rate: str :type framesize: str :type traffic_type: str + :type unidirection: bool + :type tx_port: integer + :type rx_port: integer :type warmup_time: float :type async_call: bool :type latency: bool @@ -505,9 +590,15 @@ class TrafficGenerator(AbstractMeasurer): if node['subtype'] is None: raise RuntimeError('TG subtype not defined') elif node['subtype'] == NodeSubTypeTG.TREX: - self.trex_stl_start_remote_exec(duration, rate, framesize, - traffic_type, async_call, latency, - warmup_time=warmup_time) + if unidirection: + self.trex_stl_start_unidirection(duration, rate, framesize, + traffic_type, tx_port, + rx_port, async_call, latency, + warmup_time) + else: + self.trex_stl_start_remote_exec(duration, rate, framesize, + traffic_type, async_call, + latency, warmup_time) else: raise NotImplementedError("TG subtype not supported") |