-#!/usr/bin/python
+#!/usr/bin/python3
# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
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 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, unidirection=False):
+def simple_burst(
+ profile_file, duration, framesize, rate, warmup_time, port_0, 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.
+ :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 unidirection: 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 = u"-1/-1/-1/"
+ lat_b = u"-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(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("Error while loading profile '{0}' {1}".format(profile_file, err))
+ print(f"Error while loading profile '{profile_file}' {err!r}")
sys.exit(1)
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.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 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 not unidirection:
+ 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 not unidirection:
+ 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 not unidirection:
+ 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 #####")
+ print(u"##### FAILED to add latency streams #####")
latency = False
ports = [port_0]
- if not unidirection:
+ if traffic_directions > 1:
ports.append(port_1)
# Warm-up phase:
if warmup_time > 0:
# Read the stats after the test:
stats = client.get_stats()
- print("##### Warmup statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
+ print(u"##### Warmup statistics #####")
+ print(json.dumps(stats, indent=4, separators=(u",", u": ")))
- lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
- if not unidirection:
- lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
+ 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("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
- p_0=port_0, p_1=port_1, v=lost_a))
- if not unidirection:
- print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
- p_0=port_0, p_1=port_1, v=lost_b))
+ 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()
# Choose rate and start traffic:
client.start(ports=ports, mult=rate, duration=duration)
- if not async_start:
+ 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:
client.wait_on_traffic(ports=ports, timeout=duration+30)
# Read the stats after the test
stats = client.get_stats()
- print("##### Statistics #####")
- print(json.dumps(stats, indent=4, separators=(',', ': '),
- sort_keys=True))
+ print(u"##### Statistics #####")
+ print(json.dumps(stats, indent=4, separators=(u",", u": ")))
- lost_a = stats[port_0]["opackets"] - stats[port_1]["ipackets"]
- if not unidirection:
- lost_b = stats[port_1]["opackets"] - stats[port_0]["ipackets"]
+ 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".
+ # TODO: Find out what "pgid" means.
if latency:
+ lat_obj = stats[u"latency"][0][u"latency"]
lat_a = fmt_latency(
- str(stats["latency"][port_0]["latency"]["total_min"]),
- str(stats["latency"][port_0]["latency"]["average"]),
- str(stats["latency"][port_0]["latency"]["total_max"]))
- if not unidirection:
+ 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(stats["latency"][port_1]["latency"]["total_min"]),
- str(stats["latency"][port_1]["latency"]["average"]),
- str(stats["latency"][port_1]["latency"]["total_max"]))
+ str(lat_obj[u"total_min"]), str(lat_obj[u"average"]),
+ str(lat_obj[u"total_max"]), str(lat_obj[u"hdrh"]))
- if not unidirection:
- total_sent = stats[0]["opackets"] + stats[1]["opackets"]
- total_rcvd = stats[0]["ipackets"] + stats[1]["ipackets"]
+ 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]["opackets"]
- total_rcvd = stats[port_1]["ipackets"]
+ total_sent = stats[port_0][u"opackets"]
+ total_rcvd = stats[port_1][u"ipackets"]
- print("\npackets lost from {p_0} --> {p_1}: {v} pkts".format(
- p_0=port_0, p_1=port_1, v=lost_a))
- if not unidirection:
- print("packets lost from {p_1} --> {p_0}: {v} pkts".format(
- p_0=port_0, p_1=port_1, v=lost_b))
+ 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 err:
- sys.stderr.write("{0}\n".format(err))
+ except STLError as ex_error:
+ print(ex_error, file=sys.stderr)
sys.exit(1)
finally:
else:
if client:
client.disconnect()
- if isinstance(rate, unicode):
- rate = rate.encode("utf-8")
- if isinstance(duration, unicode):
- duration = duration.encode("utf-8")
- 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))
+ print(
+ f"rate={rate!r}, totalReceived={total_rcvd}, "
+ f"totalSent={total_sent}, frameLoss={lost_a + lost_b}, "
+ f"latencyStream0(usec)={lat_a}, latencyStream1(usec)={lat_b}, "
+ f"targetDuration={duration!r}"
+ )
def main():
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=float,
- 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=float,
- default=5.0,
- 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.")
- parser.add_argument("--unidirection",
- action="store_true",
- default=False,
- help="Send unidirection traffic.")
+ 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."
+ )
args = parser.parse_args()
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,
- unidirection=args.unidirection)
+ 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
+ )
-if __name__ == '__main__':
+if __name__ == u"__main__":
main()
Code Review / csit.git / blobdiff