From 8953fa3d53019571a222a1aedb7cf796c5d67aec Mon Sep 17 00:00:00 2001 From: "wu.zhihui" Date: Fri, 22 Jul 2016 22:11:53 +0800 Subject: [Yardstick-233]latency measurment by using pktgen-dpdk VM A runs pktgen-dpdk as a traffic generator and is connected back-to-back with VM B running testpmd for forwarding packets. 1. use linux expect to fetch the latency statics data. 2. fetch 10 samples of latency and calculate avg_latency. 3. use screen to keep test scripts running in the background. 4. add a function send_command() for screen in ssh.py JIRA:YARDSTICK-233 Change-Id: I90ae64b3d198c79f159275ae35715eb284f05080 Signed-off-by: wu.zhihui --- .../scenarios/networking/test_pktgen_dpdk.py | 173 +++++++++++++++++++++ 1 file changed, 173 insertions(+) create mode 100644 tests/unit/benchmark/scenarios/networking/test_pktgen_dpdk.py (limited to 'tests/unit/benchmark/scenarios/networking') diff --git a/tests/unit/benchmark/scenarios/networking/test_pktgen_dpdk.py b/tests/unit/benchmark/scenarios/networking/test_pktgen_dpdk.py new file mode 100644 index 000000000..afc87abfb --- /dev/null +++ b/tests/unit/benchmark/scenarios/networking/test_pktgen_dpdk.py @@ -0,0 +1,173 @@ +#!/usr/bin/env python + +############################################################################## +# Copyright (c) 2015 ZTE 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.pktgen.Pktgen + +import mock +import unittest +import json + +from yardstick.benchmark.scenarios.networking import pktgen_dpdk + +@mock.patch('yardstick.benchmark.scenarios.networking.pktgen_dpdk.ssh') +class PktgenDPDKLatencyTestCase(unittest.TestCase): + + def setUp(self): + self.ctx = { + 'host': { + 'ip': '172.16.0.137', + 'user': 'root', + 'key_filename': 'mykey.key' + }, + 'target': { + 'ip': '172.16.0.138', + 'user': 'root', + 'key_filename': 'mykey.key', + 'ipaddr': '172.16.0.138' + } + } + + def test_pktgen_dpdk_successful_setup(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + p.setup() + + mock_ssh.SSH().execute.return_value = (0, '', '') + self.assertIsNotNone(p.server) + self.assertIsNotNone(p.client) + self.assertEqual(p.setup_done, True) + + def test_pktgen_dpdk_successful_get_port_ip(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + p.server = mock_ssh.SSH() + + mock_ssh.SSH().execute.return_value = (0, '', '') + + p.get_port_ip(p.server, "eth1") + + mock_ssh.SSH().execute.assert_called_with( + "ifconfig eth1 |grep 'inet addr' |awk '{print $2}' \ + |cut -d ':' -f2 ") + + def test_pktgen_dpdk_unsuccessful_get_port_ip(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + p.server = mock_ssh.SSH() + + mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR') + self.assertRaises(RuntimeError, p.get_port_ip, p.server, "eth1") + + def test_pktgen_dpdk_successful_get_port_mac(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + p.server = mock_ssh.SSH() + + mock_ssh.SSH().execute.return_value = (0, '', '') + + p.get_port_mac(p.server, "eth1") + + mock_ssh.SSH().execute.assert_called_with( + "ifconfig |grep HWaddr |grep eth1 |awk '{print $5}' ") + + def test_pktgen_dpdk_unsuccessful_get_port_mac(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + p.server = mock_ssh.SSH() + + mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR') + self.assertRaises(RuntimeError, p.get_port_mac, p.server, "eth1") + + def test_pktgen_dpdk_successful_no_sla(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + } + + result = {} + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + + sample_output = '100\n110\n112\n130\n149\n150\n90\n150\n200\n162\n' + mock_ssh.SSH().execute.return_value = (0, sample_output, '') + + p.run(result) + self.assertEqual(result, {"avg_latency": 132}) + + def test_pktgen_dpdk_successful_sla(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + 'sla': {'max_latency': 100} + } + result = {} + + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + + sample_output = '100\n100\n100\n100\n100\n100\n100\n100\n100\n100\n' + mock_ssh.SSH().execute.return_value = (0, sample_output, '') + + p.run(result) + + self.assertEqual(result, {"avg_latency": 100}) + + def test_pktgen_dpdk_unsuccessful_sla(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + 'sla': {'max_latency': 100} + } + result = {} + + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + + p.server = mock_ssh.SSH() + p.client = mock_ssh.SSH() + + sample_output = '100\n110\n112\n130\n149\n150\n90\n150\n200\n162\n' + mock_ssh.SSH().execute.return_value = (0, sample_output, '') + self.assertRaises(AssertionError, p.run, result) + + def test_pktgen_dpdk_unsuccessful_script_error(self, mock_ssh): + + args = { + 'options': {'packetsize': 60}, + 'sla': {'max_latency': 100} + } + result = {} + + p = pktgen_dpdk.PktgenDPDKLatency(args, self.ctx) + + mock_ssh.SSH().execute.return_value = (1, '', 'FOOBAR') + self.assertRaises(RuntimeError, p.run, result) + + +def main(): + unittest.main() + +if __name__ == '__main__': + main() -- cgit 1.2.3-korg