1 ##############################################################################
2 # Copyright (c) 2016 ZTE corporation and others.
4 # All rights reserved. This program and the accompanying materials
5 # are made available under the terms of the Apache License, Version 2.0
6 # which accompanies this distribution, and is available at
7 # http://www.apache.org/licenses/LICENSE-2.0
8 ##############################################################################
9 from __future__ import absolute_import
14 import yardstick.ssh as ssh
15 from yardstick.benchmark.scenarios import base
17 LOG = logging.getLogger(__name__)
20 class PktgenDPDKLatency(base.Scenario):
21 """Execute pktgen-dpdk on one vm and execute testpmd on the other vm
24 packetsize - packet size in bytes without the CRC
29 __scenario_type__ = "PktgenDPDKLatency"
31 PKTGEN_DPDK_SCRIPT = 'pktgen_dpdk_latency_benchmark.bash'
32 TESTPMD_SCRIPT = 'testpmd_fwd.bash'
34 def __init__(self, scenario_cfg, context_cfg):
35 self.scenario_cfg = scenario_cfg
36 self.context_cfg = context_cfg
37 self.setup_done = False
41 self.pktgen_dpdk_script = pkg_resources.resource_filename(
42 'yardstick.benchmark.scenarios.networking',
43 PktgenDPDKLatency.PKTGEN_DPDK_SCRIPT)
44 self.testpmd_script = pkg_resources.resource_filename(
45 'yardstick.benchmark.scenarios.networking',
46 PktgenDPDKLatency.TESTPMD_SCRIPT)
47 host = self.context_cfg['host']
48 target = self.context_cfg['target']
49 LOG.info("user:%s, target:%s", target['user'], target['ip'])
50 self.server = ssh.SSH.from_node(target, defaults={"user": "ubuntu"})
51 self.server.wait(timeout=600)
54 self.server._put_file_shell(self.testpmd_script, '~/testpmd_fwd.sh')
56 LOG.info("user:%s, host:%s", host['user'], host['ip'])
57 self.client = ssh.SSH.from_node(host, defaults={"user": "ubuntu"})
58 self.client.wait(timeout=600)
61 self.client._put_file_shell(
62 self.pktgen_dpdk_script, '~/pktgen_dpdk.sh')
64 self.setup_done = True
65 self.testpmd_args = ''
69 def get_port_mac(sshclient, port):
70 cmd = "ifconfig |grep HWaddr |grep %s |awk '{print $5}' " % port
71 LOG.debug("Executing command: %s", cmd)
72 status, stdout, stderr = sshclient.execute(cmd)
75 raise RuntimeError(stderr)
77 return stdout.rstrip()
80 def get_port_ip(sshclient, port):
81 cmd = "ifconfig %s |grep 'inet addr' |awk '{print $2}' \
82 |cut -d ':' -f2 " % port
83 LOG.debug("Executing command: %s", cmd)
84 status, stdout, stderr = sshclient.execute(cmd)
87 raise RuntimeError(stderr)
89 return stdout.rstrip()
91 def run(self, result):
92 """execute the benchmark"""
94 if not self.setup_done:
97 if not self.testpmd_args:
98 self.testpmd_args = self.get_port_mac(self.client, 'eth2')
100 if not self.pktgen_args:
101 server_rev_mac = self.get_port_mac(self.server, 'eth1')
102 server_send_mac = self.get_port_mac(self.server, 'eth2')
103 client_src_ip = self.get_port_ip(self.client, 'eth1')
104 client_dst_ip = self.get_port_ip(self.client, 'eth2')
106 self.pktgen_args = [client_src_ip, client_dst_ip,
107 server_rev_mac, server_send_mac]
109 options = self.scenario_cfg['options']
110 packetsize = options.get("packetsize", 64)
111 rate = options.get("rate", 100)
113 cmd = "screen sudo -E bash ~/testpmd_fwd.sh %s " % (self.testpmd_args)
114 LOG.debug("Executing command: %s", cmd)
115 self.server.send_command(cmd)
119 cmd = "screen sudo -E bash ~/pktgen_dpdk.sh %s %s %s %s %s %s" % \
120 (self.pktgen_args[0], self.pktgen_args[1], self.pktgen_args[2],
121 self.pktgen_args[3], rate, packetsize)
122 LOG.debug("Executing command: %s", cmd)
123 self.client.send_command(cmd)
125 # wait for finishing test
129 cat ~/result.log -vT \
130 |awk '{match($0,/\[8;40H +[0-9]+/)} \
131 {print substr($0,RSTART,RLENGTH)}' \
132 |grep -v ^$ |awk '{if ($2 != 0) print $2}'\
134 client_status, client_stdout, client_stderr = self.client.execute(cmd)
137 raise RuntimeError(client_stderr)
141 latency_list = client_stdout.split('\n')[0:-2]
142 LOG.info("10 samples of latency: %s", latency_list)
144 for i in latency_list:
145 latency_sum += int(i)
146 avg_latency = latency_sum / len(latency_list)
148 result.update({"avg_latency": avg_latency})
150 if avg_latency and "sla" in self.scenario_cfg:
151 sla_max_latency = int(self.scenario_cfg["sla"]["max_latency"])
152 LOG.info("avg_latency : %d ", avg_latency)
153 LOG.info("sla_max_latency: %d", sla_max_latency)
154 debug_info = "avg_latency %d > sla_max_latency %d" \
155 % (avg_latency, sla_max_latency)
156 assert avg_latency <= sla_max_latency, debug_info