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# Copyright 2015 Spirent Communications.
#
# 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.
"""
Code to integrate Spirent TestCenter with the vsperf test framework.
Provides a model for Spirent TestCenter as a test tool for implementing
various performance tests of a virtual switch.
"""
from __future__ import print_function
from tools.pkt_gen import trafficgen
from core.results.results_constants import ResultsConstants
import subprocess
import os
import csv
from conf import settings
class TestCenter(trafficgen.ITrafficGenerator):
"""
Spirent TestCenter
"""
def connect(self):
"""
Do nothing.
"""
return self
def disconnect(self):
"""
Do nothing.
"""
pass
def send_burst_traffic(self, traffic=None, numpkts=100, duration=20, framerate=100):
"""
Do nothing.
"""
return None
def send_cont_traffic(self, traffic=None, duration=30, framerate=0,
multistream=False):
"""
Do nothing.
"""
return None
def send_rfc2544_throughput(self, traffic=None, trials=3, duration=20,
lossrate=0.0, multistream=False):
"""
Send traffic per RFC2544 throughput test specifications.
"""
verbose = False
args = [settings.getValue("TRAFFICGEN_STC_PYTHON2_PATH"),
os.path.join(settings.getValue("TRAFFICGEN_STC_TESTCENTER_PATH"),
settings.getValue("TRAFFICGEN_STC_RFC2544_TPUT_TEST_FILE_NAME")),
"--lab_server_addr",
settings.getValue("TRAFFICGEN_STC_LAB_SERVER_ADDR"),
"--license_server_addr",
settings.getValue("TRAFFICGEN_STC_LICENSE_SERVER_ADDR"),
"--east_chassis_addr",
settings.getValue("TRAFFICGEN_STC_EAST_CHASSIS_ADDR"),
"--east_slot_num",
settings.getValue("TRAFFICGEN_STC_EAST_SLOT_NUM"),
"--east_port_num",
settings.getValue("TRAFFICGEN_STC_EAST_PORT_NUM"),
"--west_chassis_addr",
settings.getValue("TRAFFICGEN_STC_WEST_CHASSIS_ADDR"),
"--west_slot_num",
settings.getValue("TRAFFICGEN_STC_WEST_SLOT_NUM"),
"--west_port_num",
settings.getValue("TRAFFICGEN_STC_WEST_PORT_NUM"),
"--test_session_name",
settings.getValue("TRAFFICGEN_STC_TEST_SESSION_NAME"),
"--results_dir",
settings.getValue("TRAFFICGEN_STC_RESULTS_DIR"),
"--csv_results_file_prefix",
settings.getValue("TRAFFICGEN_STC_CSV_RESULTS_FILE_PREFIX"),
"--num_trials",
settings.getValue("TRAFFICGEN_STC_NUMBER_OF_TRIALS"),
"--trial_duration_sec",
settings.getValue("TRAFFICGEN_STC_TRIAL_DURATION_SEC"),
"--traffic_pattern",
settings.getValue("TRAFFICGEN_STC_TRAFFIC_PATTERN"),
"--search_mode",
settings.getValue("TRAFFICGEN_STC_SEARCH_MODE"),
"--learning_mode",
settings.getValue("TRAFFICGEN_STC_LEARNING_MODE"),
"--rate_lower_limit_pct",
settings.getValue("TRAFFICGEN_STC_RATE_LOWER_LIMIT_PCT"),
"--rate_upper_limit_pct",
settings.getValue("TRAFFICGEN_STC_RATE_UPPER_LIMIT_PCT"),
"--rate_initial_pct",
settings.getValue("TRAFFICGEN_STC_RATE_INITIAL_PCT"),
"--rate_step_pct",
settings.getValue("TRAFFICGEN_STC_RATE_STEP_PCT"),
"--resolution_pct",
settings.getValue("TRAFFICGEN_STC_RESOLUTION_PCT"),
"--frame_size_list",
settings.getValue("TRAFFICGEN_STC_FRAME_SIZE"),
"--acceptable_frame_loss_pct",
settings.getValue("TRAFFICGEN_STC_ACCEPTABLE_FRAME_LOSS_PCT"),
"--east_intf_addr",
settings.getValue("TRAFFICGEN_STC_EAST_INTF_ADDR"),
"--east_intf_gateway_addr",
settings.getValue("TRAFFICGEN_STC_EAST_INTF_GATEWAY_ADDR"),
"--west_intf_addr",
settings.getValue("TRAFFICGEN_STC_WEST_INTF_ADDR"),
"--west_intf_gateway_addr",
settings.getValue("TRAFFICGEN_STC_WEST_INTF_GATEWAY_ADDR")]
if settings.getValue("TRAFFICGEN_STC_VERBOSE") is "True":
args.append("--verbose")
verbose = True
print("Arguments used to call test: %s" % args)
subprocess.check_call(map(os.path.expanduser, args))
file = os.path.join(settings.getValue("TRAFFICGEN_STC_RESULTS_DIR"),
settings.getValue("TRAFFICGEN_STC_CSV_RESULTS_FILE_PREFIX") + ".csv")
if verbose:
print("file: %s" % file)
result = {}
with open(file, "r") as csvfile:
csvreader = csv.DictReader(csvfile)
for row in csvreader:
print("Row: %s" % row)
result[ResultsConstants.TX_RATE_FPS] = 0.0
result[ResultsConstants.THROUGHPUT_RX_FPS] = 0.0
result[ResultsConstants.TX_RATE_MBPS] = 0.0
result[ResultsConstants.THROUGHPUT_RX_MBPS] = 0.0
result[ResultsConstants.TX_RATE_PERCENT] = float(row["OfferedLoad(%)"])
result[ResultsConstants.THROUGHPUT_RX_PERCENT] = float(row["Throughput(%)"])
result[ResultsConstants.MIN_LATENCY_NS] = float(row["MinimumLatency(us)"]) * 1000
result[ResultsConstants.MAX_LATENCY_NS] = float(row["MaximumLatency(us)"]) * 1000
result[ResultsConstants.AVG_LATENCY_NS] = float(row["AverageLatency(us)"]) * 1000
return result
if __name__ == '__main__':
TRAFFIC = {
'l3': {
'proto': 'tcp',
'srcip': '1.1.1.1',
'dstip': '90.90.90.90',
},
}
with TestCenter() as dev:
print(dev.send_rfc2544_throughput(traffic=TRAFFIC))
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