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Diffstat (limited to 'resources/tools/t-rex/t-rex-stateless-profile.py')
| -rwxr-xr-x | resources/tools/t-rex/t-rex-stateless-profile.py | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/resources/tools/t-rex/t-rex-stateless-profile.py b/resources/tools/t-rex/t-rex-stateless-profile.py deleted file mode 100755 index 0bbd241f8b..0000000000 --- a/resources/tools/t-rex/t-rex-stateless-profile.py +++ /dev/null @@ -1,296 +0,0 @@ -#!/usr/bin/python - -# Copyright (c) 2017 Cisco and/or its affiliates. -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at: -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -"""This module gets a traffic profile together with other parameters, reads -the profile and sends the traffic. At the end, it measures the packet loss and -latency. -""" - -import sys -import argparse -import json - -sys.path.insert(0, "/opt/trex-core-2.25/scripts/automation/" - "trex_control_plane/stl/") - -from trex_stl_lib.api import * - - -def fmt_latency(lat_min, lat_avg, lat_max): - """Return formatted, rounded latency. - - :param lat_min: Min latency - :param lat_avg: Average latency - :param lat_max: Max latency - :type lat_min: string - :type lat_avg: string - :type lat_max: string - :return: Formatted and rounded output "min/avg/max" - :rtype: string - """ - - try: - t_min = int(round(float(lat_min))) - except ValueError: - t_min = int(-1) - try: - t_avg = int(round(float(lat_avg))) - except ValueError: - t_avg = int(-1) - try: - t_max = int(round(float(lat_max))) - except ValueError: - t_max = int(-1) - - return "/".join(str(tmp) for tmp in (t_min, t_avg, t_max)) - - -def simple_burst(profile_file, duration, framesize, rate, warmup_time, port_0, - port_1, latency, async_start=False): - """Send the traffic and measure packet loss and latency. - - Procedure: - - reads the given traffic profile with streams, - - connects to the T-rex client, - - resets the ports, - - removes all existing streams, - - adds streams from the traffic profile to the ports, - - if the warm-up time is more than 0, sends the warm-up traffic, reads the - statistics, - - clears the statistics from the client, - - starts the traffic, - - waits for the defined time (or runs forever if async mode is defined), - - stops the traffic, - - reads and displays the statistics and - - disconnects from the client. - - :param profile_file: A python module with T-rex traffic profile. - :param framesize: Frame size. - :param duration: Duration of traffic run in seconds (-1=infinite). - :param rate: Traffic rate [percentage, pps, bps]. - :param warmup_time: Traffic warm-up time in seconds, 0 = disable. - :param port_0: Port 0 on the traffic generator. - :param port_1: Port 1 on the traffic generator. - :param latency: With latency stats. - :param async_start: Start the traffic and exit. - :type profile_file: str - :type framesize: int or str - :type duration: int - :type rate: str - :type warmup_time: int - :type port_0: int - :type port_1: int - :type latency: boo; - :type async_start: bool - """ - - client = None - total_rcvd = 0 - total_sent = 0 - lost_a = 0 - lost_b = 0 - lat_a = "-1/-1/-1" - lat_b = "-1/-1/-1" - - # Read the profile: - try: - print("### Profile file:\n{}".format(profile_file)) - profile = STLProfile.load(profile_file, direction=0, port_id=0, - framesize=framesize) - print("\n### Profiles ###\n") - print(profile.dump_to_yaml()) - streams = profile.get_streams() - except STLError: - print("Error while loading profile '{0}'\n".format(profile_file)) - sys.exit(1) - - try: - # Create the client: - client = STLClient(verbose_level=LoggerApi.VERBOSE_QUIET) - # Connect to server: - client.connect() - # Prepare our ports (the machine has 0 <--> 1 with static route): - client.reset(ports=[port_0, port_1]) - client.remove_all_streams(ports=[port_0, port_1]) - - if isinstance(framesize, int): - client.add_streams(streams[0], ports=[port_0]) - client.add_streams(streams[1], ports=[port_1]) - elif isinstance(framesize, str): - client.add_streams(streams[0:3], ports=[port_0]) - client.add_streams(streams[3:6], ports=[port_1]) - if latency: - try: - if isinstance(framesize, int): - client.add_streams(streams[2], ports=[port_0]) - client.add_streams(streams[3], ports=[port_1]) - elif isinstance(framesize, str): - latency = False - except STLError: - # Disable latency if NIC does not support requested stream type - print("##### FAILED to add latency streams #####") - latency = False - # Warm-up phase: - if warmup_time > 0: - # Clear the stats before injecting: - client.clear_stats() - - # Choose rate and start traffic: - client.start(ports=[port_0, port_1], mult=rate, - duration=warmup_time) - - # Block until done: - client.wait_on_traffic(ports=[port_0, port_1], - timeout=warmup_time+30) - - if client.get_warnings(): - for warning in client.get_warnings(): - print(warning) - - # Read the stats after the test: - stats = client.get_stats() - - print("##### Warmup statistics #####") - print(json.dumps(stats, indent=4, separators=(',', ': '), - sort_keys=True)) - - lost_a = stats[0]["opackets"] - stats[1]["ipackets"] - lost_b = stats[1]["opackets"] - stats[0]["ipackets"] - - print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a)) - print("packets lost from 1 --> 0: {0} pkts".format(lost_b)) - - # Clear the stats before injecting: - client.clear_stats() - lost_a = 0 - lost_b = 0 - - # Choose rate and start traffic: - client.start(ports=[port_0, port_1], mult=rate, duration=duration) - - if not async_start: - # Block until done: - client.wait_on_traffic(ports=[port_0, port_1], timeout=duration+30) - - if client.get_warnings(): - for warning in client.get_warnings(): - print(warning) - - # Read the stats after the test - stats = client.get_stats() - - print("##### Statistics #####") - print(json.dumps(stats, indent=4, separators=(',', ': '), - sort_keys=True)) - - lost_a = stats[0]["opackets"] - stats[1]["ipackets"] - lost_b = stats[1]["opackets"] - stats[0]["ipackets"] - - if latency: - lat_a = fmt_latency( - str(stats["latency"][0]["latency"]["total_min"]), - str(stats["latency"][0]["latency"]["average"]), - str(stats["latency"][0]["latency"]["total_max"])) - lat_b = fmt_latency( - str(stats["latency"][1]["latency"]["total_min"]), - str(stats["latency"][1]["latency"]["average"]), - str(stats["latency"][1]["latency"]["total_max"])) - - total_sent = stats[0]["opackets"] + stats[1]["opackets"] - total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"] - - print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a)) - print("packets lost from 1 --> 0: {0} pkts".format(lost_b)) - - except STLError as err: - sys.stderr.write("{0}\n".format(err)) - sys.exit(1) - - finally: - if async_start: - if client: - client.disconnect(stop_traffic=False, release_ports=True) - else: - if client: - client.disconnect() - print("rate={0}, totalReceived={1}, totalSent={2}, " - "frameLoss={3}, latencyStream0(usec)={4}, " - "latencyStream1(usec)={5}". - format(rate, total_rcvd, total_sent, lost_a + lost_b, - lat_a, lat_b)) - - -def main(): - """Main function for the traffic generator using T-rex. - - It verifies the given command line arguments and runs "simple_burst" - function. - """ - - parser = argparse.ArgumentParser() - parser.add_argument("-p", "--profile", - required=True, - type=str, - help="Python traffic profile.") - parser.add_argument("-d", "--duration", - required=True, - type=int, - help="Duration of traffic run.") - parser.add_argument("-s", "--frame_size", - required=True, - help="Size of a Frame without padding and IPG.") - parser.add_argument("-r", "--rate", - required=True, - help="Traffic rate with included units (%, pps).") - parser.add_argument("-w", "--warmup_time", - type=int, - default=5, - help="Traffic warm-up time in seconds, 0 = disable.") - parser.add_argument("--port_0", - required=True, - type=int, - help="Port 0 on the traffic generator.") - parser.add_argument("--port_1", - required=True, - type=int, - help="Port 1 on the traffic generator.") - parser.add_argument("--async", - action="store_true", - default=False, - help="Non-blocking call of the script.") - parser.add_argument("--latency", - action="store_true", - default=False, - help="Add latency stream") - args = parser.parse_args() - - try: - framesize = int(args.frame_size) - except ValueError: - framesize = args.frame_size - - simple_burst(profile_file=args.profile, - duration=int(args.duration), - framesize=framesize, - rate=args.rate, - warmup_time=int(args.warmup_time), - port_0=int(args.port_0), - port_1=int(args.port_1), - latency=args.latency, - async_start=args.async) - - -if __name__ == '__main__': - main() |