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authorwu.zhihui <wu.zhihui1@zte.com.cn>2016-07-22 22:11:53 +0800
committerwu.zhihui <wu.zhihui1@zte.com.cn>2016-08-12 14:07:03 +0800
commit8953fa3d53019571a222a1aedb7cf796c5d67aec (patch)
tree6d30824e222242660d48ad7dd1451cd290bd2a6c /tests/unit/benchmark/scenarios/networking
parent6ce3a97548e95a62cf39f37c76bf5b618f5575c4 (diff)
[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 <wu.zhihui1@zte.com.cn>
Diffstat (limited to 'tests/unit/benchmark/scenarios/networking')
-rw-r--r--tests/unit/benchmark/scenarios/networking/test_pktgen_dpdk.py173
1 files changed, 173 insertions, 0 deletions
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()