--- /dev/null
+#!/usr/bin/env python
+
+##############################################################################
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+# Unittest for yardstick.benchmark.scenarios.networking.nstat.Nstat
+
+from __future__ import absolute_import
+
+import unittest
+
+import mock
+
+from yardstick.benchmark.scenarios.networking import nstat
+
+@mock.patch('yardstick.benchmark.scenarios.networking.nstat.ssh')
+class NstatTestCase(unittest.TestCase):
+
+ def setUp(self):
+ self.ctx = {
+ "host": {
+ "ip": "192.168.50.28",
+ "user": "root",
+ "key_filename": "mykey.key"
+ }
+ }
+
+ def test_nstat_successful_setup(self, mock_ssh):
+
+ n = nstat.Nstat({}, self.ctx)
+ n.setup()
+
+ mock_ssh.SSH().execute.return_value = (0, '', '')
+ self.assertIsNotNone(n.client)
+ self.assertEqual(n.setup_done, True)
+
+ def test_nstat_successful_no_sla(self, mock_ssh):
+
+ options = {
+ "duration": 60
+ }
+ args = {
+ "options": options,
+ }
+ n = nstat.Nstat(args, self.ctx)
+ result = {}
+
+ sample_output = '#kernel\nIpInReceives 1837 0.0\nIpInHdrErrors 0 0.0\nIpInAddrErrors 2 0.0\nIcmpInMsgs 319 0.0\nIcmpInErrors 0 0.0\nTcpInSegs 36 0.0\nTcpInErrs 0 0.0\nUdpInDatagrams 1318 0.0\nUdpInErrors 0 0.0\n'
+
+ mock_ssh.SSH().execute.return_value = (0, sample_output, '')
+
+ n.run(result)
+ expected_result = {"TcpInErrs": 0, "UdpInDatagrams": 1318,
+ "Tcp_segment_error_rate": 0.0, "IpInAddrErrors": 2,
+ "IpInHdrErrors": 0, "IcmpInErrors": 0, "IpErrors": 2,
+ "TcpInSegs": 36, "IpInReceives": 1837, "IcmpInMsgs": 319,
+ "IP_datagram_error_rate": 0.001, "Udp_datagram_error_rate": 0.0,
+ "Icmp_message_error_rate": 0.0, "UdpInErrors": 0}
+ self.assertEqual(result, expected_result)
+
+ def test_nstat_successful_sla(self, mock_ssh):
+
+ options = {
+ "duration": 60
+ }
+ sla = {
+ "IP_datagram_error_rate": 0.1
+ }
+ args = {
+ "options": options,
+ "sla": sla
+ }
+ n = nstat.Nstat(args, self.ctx)
+ result = {}
+
+ sample_output = '#kernel\nIpInReceives 1837 0.0\nIpInHdrErrors 0 0.0\nIpInAddrErrors 2 0.0\nIcmpInMsgs 319 0.0\nIcmpInErrors 0 0.0\nTcpInSegs 36 0.0\nTcpInErrs 0 0.0\nUdpInDatagrams 1318 0.0\nUdpInErrors 0 0.0\n'
+
+ mock_ssh.SSH().execute.return_value = (0, sample_output, '')
+
+ n.run(result)
+ expected_result = {"TcpInErrs": 0, "UdpInDatagrams": 1318,
+ "Tcp_segment_error_rate": 0.0, "IpInAddrErrors": 2,
+ "IpInHdrErrors": 0, "IcmpInErrors": 0, "IpErrors": 2,
+ "TcpInSegs": 36, "IpInReceives": 1837, "IcmpInMsgs": 319,
+ "IP_datagram_error_rate": 0.001, "Udp_datagram_error_rate": 0.0,
+ "Icmp_message_error_rate": 0.0, "UdpInErrors": 0}
+ self.assertEqual(result, expected_result)
+
+ def test_nstat_unsuccessful_cmd_error(self, mock_ssh):
+
+ options = {
+ "duration": 60
+ }
+ sla = {
+ "IP_datagram_error_rate": 0.1
+ }
+ args = {
+ "options": options,
+ "sla": sla
+ }
+ n = nstat.Nstat(args, self.ctx)
+ result = {}
+
+ mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR')
+ self.assertRaises(RuntimeError, n.run, result)
+
+
+def main():
+ unittest.main()
+
+if __name__ == '__main__':
+ main()
--- /dev/null
+##############################################################################
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+from __future__ import print_function
+from __future__ import absolute_import
+
+import time
+import logging
+
+import yardstick.ssh as ssh
+from yardstick.benchmark.scenarios import base
+
+LOG = logging.getLogger(__name__)
+
+PRECISION = 3
+
+
+class Nstat(base.Scenario):
+ """Use nstat to monitor network metrics and measure IP datagram error rate
+ and etc.
+ """
+
+ __scenario_type__ = "Nstat"
+
+ def __init__(self, scenario_cfg, context_cfg):
+ """Scenario construction"""
+ self.scenario_cfg = scenario_cfg
+ self.context_cfg = context_cfg
+ self.setup_done = False
+
+ def setup(self):
+ """scenario setup"""
+ host = self.context_cfg["host"]
+ user = host.get("user", "ubuntu")
+ ssh_port = host.get("ssh_port", ssh.DEFAULT_PORT)
+ ip = host.get("ip", None)
+ key_filename = host.get('key_filename', "~/.ssh/id_rsa")
+
+ LOG.info("user:%s, host:%s", user, ip)
+ self.client = ssh.SSH(user, ip, key_filename=key_filename,
+ port=ssh_port)
+ self.client.wait(timeout=600)
+
+ self.setup_done = True
+
+ def match(self, key, field, line, results):
+ """match data in the output"""
+ if key in line:
+ results[key] = int(line.split()[field])
+
+ def calculate_error_rate(self, x, y):
+ """calculate error rate"""
+ try:
+ return round(float(x) / float(y), PRECISION)
+ except ZeroDivisionError:
+ # If incoming Errors is non-zero, but incoming data is zero
+ # consider it as 100% error rate
+ if x:
+ return 1
+ else:
+ return 0
+
+ def process_output(self, out):
+ """process output"""
+ results = {}
+ for line in out.splitlines():
+ self.match('IpInReceives', 1, line, results)
+ self.match('IpInHdrErrors', 1, line, results)
+ self.match('IpInAddrErrors', 1, line, results)
+ self.match('IcmpInMsgs', 1, line, results)
+ self.match('IcmpInErrors', 1, line, results)
+ self.match('TcpInSegs', 1, line, results)
+ self.match('TcpInErrs', 1, line, results)
+ self.match('UdpInDatagrams', 1, line, results)
+ self.match('UdpInErrors', 1, line, results)
+ results['IpErrors'] = \
+ results['IpInHdrErrors'] + results['IpInAddrErrors']
+ results['IP_datagram_error_rate'] = \
+ self.calculate_error_rate(results['IpErrors'],
+ results['IpInReceives'])
+ results['Icmp_message_error_rate'] = \
+ self.calculate_error_rate(results['IcmpInErrors'],
+ results['IcmpInMsgs'])
+ results['Tcp_segment_error_rate'] = \
+ self.calculate_error_rate(results['TcpInErrs'],
+ results['TcpInSegs'])
+ results['Udp_datagram_error_rate'] = \
+ self.calculate_error_rate(results['UdpInErrors'],
+ results['UdpInDatagrams'])
+ return results
+
+ def run(self, result):
+ """execute the benchmark"""
+
+ if not self.setup_done:
+ self.setup()
+
+ options = self.scenario_cfg['options']
+ duration = options.get('duration', 60)
+
+ time.sleep(duration)
+
+ cmd = "nstat -z"
+
+ LOG.debug("Executing command: %s", cmd)
+ status, stdout, stderr = self.client.execute(cmd)
+
+ if status:
+ raise RuntimeError(stderr)
+
+ results = self.process_output(stdout)
+
+ result.update(results)
+
+ if "sla" in self.scenario_cfg:
+ sla_error = ""
+ for i, rate in result.items():
+ if i not in self.scenario_cfg['sla']:
+ continue
+ sla_rate = float(self.scenario_cfg['sla'][i])
+ rate = float(rate)
+ if rate > sla_rate:
+ sla_error += "%s rate %f > sla:%s_rate(%f); " % \
+ (i, rate, i, sla_rate)
+ assert sla_error == "", sla_error
Code Review / yardstick.git / commitdiff