diff options
Diffstat (limited to 'resources/tools/trex/trex_stateless_profile.py')
| -rwxr-xr-x | resources/tools/trex/trex_stateless_profile.py | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/resources/tools/trex/trex_stateless_profile.py b/resources/tools/trex/trex_stateless_profile.py deleted file mode 100755 index a0de5c0cd3..0000000000 --- a/resources/tools/trex/trex_stateless_profile.py +++ /dev/null @@ -1,345 +0,0 @@ -#!/usr/bin/python3 - -# Copyright (c) 2020 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 argparse -import json -import sys -import time - -sys.path.insert( - 0, u"/opt/trex-core-2.73/scripts/automation/trex_control_plane/interactive/" -) -from trex.stl.api import * - - -def fmt_latency(lat_min, lat_avg, lat_max, hdrh): - """Return formatted, rounded latency. - - :param lat_min: Min latency - :param lat_avg: Average latency - :param lat_max: Max latency - :param hdrh: Base64 encoded compressed HDRHistogram object. - :type lat_min: str - :type lat_avg: str - :type lat_max: str - :type hdrh: str - :return: Formatted and rounded output (hdrh unchanged) "min/avg/max/hdrh". - :rtype: str - """ - 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 u"/".join(str(tmp) for tmp in (t_min, t_avg, t_max, hdrh)) - - -def simple_burst( - profile_file, duration, framesize, rate, warmup_time, port_0, port_1, - latency, async_start=False, traffic_directions=2, force=False): - """Send 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. - :param traffic_directions: Bidirectional (2) or unidirectional (1) traffic. - :param force: Force start regardless of ports state. - :type profile_file: str - :type framesize: int or str - :type duration: float - :type rate: str - :type warmup_time: float - :type port_0: int - :type port_1: int - :type latency: bool - :type async_start: bool - :type traffic_directions: int - :type force: bool - """ - client = None - total_rcvd = 0 - total_sent = 0 - approximated_duration = 0 - approximated_rate = 0 - lost_a = 0 - lost_b = 0 - lat_a = u"-1/-1/-1/" - lat_b = u"-1/-1/-1/" - - # Read the profile: - try: - print(f"### Profile file:\n{profile_file}") - profile = STLProfile.load( - profile_file, direction=0, port_id=0, framesize=framesize - ) - streams = profile.get_streams() - except STLError as err: - print(f"Error while loading profile '{profile_file}' {err!r}") - sys.exit(1) - - try: - # Create the client: - client = STLClient() - # 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 u"macsrc" in profile_file: - client.set_port_attr(ports=[port_0, port_1], promiscuous=True) - if isinstance(framesize, int): - client.add_streams(streams[0], ports=[port_0]) - if traffic_directions > 1: - client.add_streams(streams[1], ports=[port_1]) - elif isinstance(framesize, str): - client.add_streams(streams[0:3], ports=[port_0]) - if traffic_directions > 1: - client.add_streams(streams[3:6], ports=[port_1]) - if latency: - try: - if isinstance(framesize, int): - client.add_streams(streams[2], ports=[port_0]) - if traffic_directions > 1: - 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(u"##### FAILED to add latency streams #####") - latency = False - ports = [port_0] - if traffic_directions > 1: - ports.append(port_1) - # Warm-up phase: - if warmup_time > 0: - # Clear the stats before injecting: - client.clear_stats() - - # Choose rate and start traffic: - client.start(ports=ports, mult=rate, duration=warmup_time, - force=force) - - # Block until done: - time_start = time.monotonic() - client.wait_on_traffic(ports=ports, timeout=warmup_time+30) - time_stop = time.monotonic() - approximated_duration = time_stop - time_start - - if client.get_warnings(): - for warning in client.get_warnings(): - print(warning) - - # Read the stats after the test: - stats = client.get_stats() - - print(u"##### Warmup statistics #####") - print(json.dumps(stats, indent=4, separators=(u",", u": "))) - - lost_a = stats[port_0][u"opackets"] - stats[port_1][u"ipackets"] - if traffic_directions > 1: - lost_b = stats[port_1][u"opackets"] - stats[port_0][u"ipackets"] - - print(f"\npackets lost from {port_0} --> {port_1}: {lost_a} pkts") - if traffic_directions > 1: - print(f"packets lost from {port_1} --> {port_0}: {lost_b} pkts") - - # Clear the stats before injecting: - client.clear_stats() - lost_a = 0 - lost_b = 0 - - # Choose rate and start traffic: - client.start(ports=ports, mult=rate, duration=duration) - - if async_start: - # For async stop, we need to export the current snapshot. - xsnap0 = client.ports[0].get_xstats().reference_stats - print(f"Xstats snapshot 0: {xsnap0!r}") - if traffic_directions > 1: - xsnap1 = client.ports[1].get_xstats().reference_stats - print(f"Xstats snapshot 1: {xsnap1!r}") - else: - # Block until done: - time_start = time.monotonic() - client.wait_on_traffic(ports=ports, timeout=duration+30) - time_stop = time.monotonic() - approximated_duration = time_stop - time_start - - if client.get_warnings(): - for warning in client.get_warnings(): - print(warning) - - # Read the stats after the test - stats = client.get_stats() - - print(u"##### Statistics #####") - print(json.dumps(stats, indent=4, separators=(u",", u": "))) - - lost_a = stats[port_0][u"opackets"] - stats[port_1][u"ipackets"] - if traffic_directions > 1: - lost_b = stats[port_1][u"opackets"] - stats[port_0][u"ipackets"] - - # Stats index is not a port number, but "pgid". - if latency: - lat_obj = stats[u"latency"][0][u"latency"] - lat_a = fmt_latency( - str(lat_obj[u"total_min"]), str(lat_obj[u"average"]), - str(lat_obj[u"total_max"]), str(lat_obj[u"hdrh"])) - if traffic_directions > 1: - lat_obj = stats[u"latency"][1][u"latency"] - lat_b = fmt_latency( - str(lat_obj[u"total_min"]), str(lat_obj[u"average"]), - str(lat_obj[u"total_max"]), str(lat_obj[u"hdrh"])) - - if traffic_directions > 1: - total_sent = stats[0][u"opackets"] + stats[1][u"opackets"] - total_rcvd = stats[0][u"ipackets"] + stats[1][u"ipackets"] - else: - total_sent = stats[port_0][u"opackets"] - total_rcvd = stats[port_1][u"ipackets"] - try: - approximated_rate = total_sent / approximated_duration - except ZeroDivisionError: - pass - - print(f"\npackets lost from {port_0} --> {port_1}: {lost_a} pkts") - if traffic_directions > 1: - print(f"packets lost from {port_1} --> {port_0}: {lost_b} pkts") - - except STLError as ex_error: - print(ex_error, file=sys.stderr) - sys.exit(1) - - finally: - if async_start: - if client: - client.disconnect(stop_traffic=False, release_ports=True) - else: - if client: - client.disconnect() - print( - f"rate={rate!r}, totalReceived={total_rcvd}, " - f"totalSent={total_sent}, frameLoss={lost_a + lost_b}, " - f"targetDuration={duration!r}, " - f"approximatedDuration={approximated_duration!r}, " - f"approximatedRate={approximated_rate}, " - f"latencyStream0(usec)={lat_a}, latencyStream1(usec)={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( - u"-p", u"--profile", required=True, type=str, - help=u"Python traffic profile." - ) - parser.add_argument( - u"-d", u"--duration", required=True, type=float, - help=u"Duration of traffic run." - ) - parser.add_argument( - u"-s", u"--frame_size", required=True, - help=u"Size of a Frame without padding and IPG." - ) - parser.add_argument( - u"-r", u"--rate", required=True, - help=u"Traffic rate with included units (%, pps)." - ) - parser.add_argument( - u"-w", u"--warmup_time", type=float, default=5.0, - help=u"Traffic warm-up time in seconds, 0 = disable." - ) - parser.add_argument( - u"--port_0", required=True, type=int, - help=u"Port 0 on the traffic generator." - ) - parser.add_argument( - u"--port_1", required=True, type=int, - help=u"Port 1 on the traffic generator." - ) - parser.add_argument( - u"--async_start", action=u"store_true", default=False, - help=u"Non-blocking call of the script." - ) - parser.add_argument( - u"--latency", action=u"store_true", default=False, - help=u"Add latency stream." - ) - parser.add_argument( - u"--traffic_directions", type=int, default=2, - help=u"Send bi- (2) or uni- (1) directional traffic." - ) - parser.add_argument( - u"--force", action=u"store_true", default=False, - help=u"Force start regardless of ports state." - ) - - args = parser.parse_args() - - try: - framesize = int(args.frame_size) - except ValueError: - framesize = args.frame_size - - simple_burst( - profile_file=args.profile, duration=args.duration, framesize=framesize, - rate=args.rate, warmup_time=args.warmup_time, port_0=args.port_0, - port_1=args.port_1, latency=args.latency, async_start=args.async_start, - traffic_directions=args.traffic_directions, force=args.force - ) - - -if __name__ == u"__main__": - main() |