-#!/usr/bin/python
+#!/usr/bin/python3
-# Copyright (c) 2017 Cisco and/or its affiliates.
+# Copyright (c) 2019 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:
latency.
"""
-import sys
import argparse
import json
+import sys
-sys.path.insert(0, "/opt/trex-core-2.35/scripts/automation/"
- "trex_control_plane/stl/")
-
-from trex_stl_lib.api import *
+sys.path.insert(0, "/opt/trex-core-2.61/scripts/automation/"
+ "trex_control_plane/interactive/")
+from trex.stl.api import *
-def fmt_latency(lat_min, lat_avg, lat_max):
+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
- :type lat_min: string
- :type lat_avg: string
- :type lat_max: string
- :return: Formatted and rounded output "min/avg/max"
- :rtype: string
+ :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:
except ValueError:
t_max = int(-1)
- return "/".join(str(tmp) for tmp in (t_min, t_avg, t_max))
+ return "/".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, unidirection=False):
+ port_1, latency, async_start=False, traffic_directions=2):
"""Send traffic and measure packet loss and latency.
Procedure:
:param port_1: Port 1 on the traffic generator.
:param latency: With latency stats.
:param async_start: Start the traffic and exit.
- :param unidirection: Traffic is unidirectional.
- :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 unidirection: bool
- """
-
- #unidirection traffic
- if unidirection:
- send_traffic_unidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start)
- #bidirection traffic
- else:
- send_traffic_bidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start)
-
-
-def send_traffic_bidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start=False):
- """Send traffic bidirection and measure packet loss and latency.
-
- :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.
:type profile_file: str
:type framesize: int or str
:type duration: float
:type port_1: int
:type latency: bool
:type async_start: bool
+ :type traffic_directions: int
"""
-
client = None
total_rcvd = 0
total_sent = 0
lost_a = 0
lost_b = 0
- lat_a = "-1/-1/-1"
- lat_b = "-1/-1/-1"
+ lat_a = "-1/-1/-1/"
+ lat_b = "-1/-1/-1/"
# Read the profile:
try:
try:
# Create the client:
- client = STLClient(verbose_level=LoggerApi.VERBOSE_QUIET)
+ client = STLClient()
# Connect to server:
client.connect()
# Prepare our ports (the machine has 0 <--> 1 with static route):
client.remove_all_streams(ports=[port_0, port_1])
if "macsrc" in profile_file:
- client.set_port_attr(ports=[port_0, port_1], promiscuous=True,
- resolve=False)
+ client.set_port_attr(ports=[port_0, port_1], promiscuous=True)
if isinstance(framesize, int):
client.add_streams(streams[0], ports=[port_0])
- client.add_streams(streams[1], ports=[port_1])
+ 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])
- client.add_streams(streams[3:6], ports=[port_1])
+ 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])
- client.add_streams(streams[3], ports=[port_1])
+ 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("##### 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=[port_0, port_1], mult=rate,
- duration=warmup_time)
+ client.start(ports=ports, mult=rate, duration=warmup_time)
# Block until done:
- client.wait_on_traffic(ports=[port_0, port_1],
- timeout=warmup_time+30)
+ client.wait_on_traffic(ports=ports, timeout=warmup_time+30)
if client.get_warnings():
for warning in client.get_warnings():
stats = client.get_stats()
print("##### Warmup statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
+ print(json.dumps(stats, indent=4, separators=(',', ': ')))
- lost_a = stats[0]["opackets"] - stats[1]["ipackets"]
- lost_b = stats[1]["opackets"] - stats[0]["ipackets"]
+ lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
+ if traffic_directions > 1:
+ lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
- print("\npackets lost from 0 --> 1: {0} pkts".format(lost_a))
- print("packets lost from 1 --> 0: {0} pkts".format(lost_b))
+ print("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_a))
+ if traffic_directions > 1:
+ print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_b))
# Clear the stats before injecting:
client.clear_stats()
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()
+ client.start(ports=ports, mult=rate, duration=duration)
- 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 send_traffic_unidirection(profile_file, duration, framesize, rate,
- warmup_time, port_0, port_1, latency,
- async_start=False):
- """Send traffic unidirection and measure packet loss and latency.
-
- :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: float
- :type rate: str
- :type warmup_time: float
- :type port_0: int
- :type port_1: int
- :type latency: bool
- :type async_start: bool
- """
-
- client = None
- total_rcvd = 0
- total_sent = 0
- lost_a = 0
- lat_a = "-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)
- streams = profile.get_streams()
- except STLError as err:
- print("Error while loading profile '{0}' {1}".format(profile_file, err))
- sys.exit(1)
-
- try:
- # Create the client:
- client = STLClient(verbose_level=LoggerApi.VERBOSE_QUIET)
- # Connect to server:
- client.connect()
- # Prepare our ports:
- if port_0 == port_1:
- client.reset(ports=[port_0])
- client.remove_all_streams(ports=[port_0])
-
- if "macsrc" in profile_file:
- client.set_port_attr(ports=[port_0], promiscuous=True,
- resolve=False)
+ # For async stop, we need to export the current snapshot.
+ xsnap0 = client.ports[0].get_xstats().reference_stats
+ print("Xstats snapshot 0: {s!r}".format(s=xsnap0))
+ if traffic_directions > 1:
+ xsnap1 = client.ports[1].get_xstats().reference_stats
+ print("Xstats snapshot 1: {s!r}".format(s=xsnap1))
else:
- client.reset(ports=[port_0, port_1])
- client.remove_all_streams(ports=[port_0, port_1])
-
- if "macsrc" in profile_file:
- client.set_port_attr(ports=[port_0, port_1], promiscuous=True,
- resolve=False)
-
- if isinstance(framesize, int):
- client.add_streams(streams[0], ports=[port_0])
- elif isinstance(framesize, str):
- client.add_streams(streams[0:3], ports=[port_0])
- if latency:
- try:
- if isinstance(framesize, int):
- client.add_streams(streams[2], ports=[port_0])
- 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], mult=rate,
- duration=warmup_time)
-
- # Block until done:
- client.wait_on_traffic(ports=[port_0],
- 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[port_0]["opackets"] - stats[port_1]["ipackets"]
- print("\npackets lost : {0} pkts".format(lost_a))
-
- # Clear the stats before injecting:
- client.clear_stats()
- lost_a = 0
-
- # Choose rate and start traffic:
- client.start(ports=[port_0], mult=rate, duration=duration)
-
- if not async_start:
# Block until done:
- client.wait_on_traffic(ports=[port_0], timeout=duration+30)
+ client.wait_on_traffic(ports=ports, timeout=duration+30)
if client.get_warnings():
for warning in client.get_warnings():
stats = client.get_stats()
print("##### Statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
+ print(json.dumps(stats, indent=4, separators=(',', ': ')))
lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
+ if traffic_directions > 1:
+ lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
+ # Stats index is not a port number, but "pgid".
+ # TODO: Find out what "pgid" means.
if latency:
+ lat_obj = stats["latency"][0]["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"]))
-
- total_sent = stats[port_0]["opackets"]
- total_rcvd = stats[port_1]["ipackets"]
-
- print("\npackets lost : {0} pkts".format(lost_a))
-
- except STLError as err:
- sys.stderr.write("{0}\n".format(err))
+ str(lat_obj["total_min"]), str(lat_obj["average"]),
+ str(lat_obj["total_max"]), str(lat_obj["hdrh"]))
+ if traffic_directions > 1:
+ lat_obj = stats["latency"][1]["latency"]
+ lat_b = fmt_latency(
+ str(lat_obj["total_min"]), str(lat_obj["average"]),
+ str(lat_obj["total_max"]), str(lat_obj["hdrh"]))
+
+ if traffic_directions > 1:
+ total_sent = stats[0]["opackets"] + stats[1]["opackets"]
+ total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"]
+ else:
+ total_sent = stats[port_0]["opackets"]
+ total_rcvd = stats[port_1]["ipackets"]
+
+ print("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_a))
+ if traffic_directions > 1:
+ print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
+ p_0=port_0, p_1=port_1, v=lost_b))
+
+ except STLError as ex_error:
+ print(ex_error, file=sys.stderr)
sys.exit(1)
finally:
else:
if client:
client.disconnect()
- print("rate={0}, totalReceived={1}, totalSent={2}, "
- "frameLoss={3}, latencyStream0(usec)={4}".
- format(rate, total_rcvd, total_sent, lost_a, lat_a))
+ print("rate={0!r}, totalReceived={1}, totalSent={2}, "
+ "frameLoss={3}, latencyStream0(usec)={4}, "
+ "latencyStream1(usec)={5}, targetDuration={d!r}".
+ format(rate, total_rcvd, total_sent, lost_a + lost_b,
+ lat_a, lat_b, d=duration))
def main():
It verifies the given command line arguments and runs "simple_burst"
function.
"""
-
parser = argparse.ArgumentParser()
parser.add_argument("-p", "--profile",
required=True,
required=True,
type=int,
help="Port 1 on the traffic generator.")
- parser.add_argument("--async",
+ parser.add_argument("--async_start",
action="store_true",
default=False,
help="Non-blocking call of the script.")
action="store_true",
default=False,
help="Add latency stream.")
- parser.add_argument("--unidirection",
- action="store_true",
- default=False,
- help="Send unidirection traffic.")
+ parser.add_argument("--traffic_directions",
+ type=int,
+ default=2,
+ help="Send bi- (2) or uni- (1) directional traffic.")
args = parser.parse_args()
port_0=args.port_0,
port_1=args.port_1,
latency=args.latency,
- async_start=args.async,
- unidirection=args.unidirection)
+ async_start=args.async_start,
+ traffic_directions=args.traffic_directions)
if __name__ == '__main__':
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