1 ##############################################################################
2 # Copyright (c) 2015 Ericsson AB 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 ##############################################################################
15 import yardstick.ssh as ssh
16 from yardstick.benchmark.scenarios import base
18 LOG = logging.getLogger(__name__)
21 class Ping(base.Scenario):
22 """Executes a ping benchmark between two hosts"""
23 __scenario_type__ = "Ping"
25 TARGET_SCRIPT = 'ping_benchmark.bash'
27 def __init__(self, context):
28 self.context = context
29 self.target_script = pkg_resources.resource_filename(
30 'yardstick.benchmark.scenarios.networking', Ping.TARGET_SCRIPT)
31 user = self.context.get('user', 'ubuntu')
32 host = self.context.get('host', None)
33 key_filename = self.context.get('key_filename', '~/.ssh/id_rsa')
35 LOG.debug("user:%s, host:%s", user, host)
37 self.connection = ssh.SSH(user, host, key_filename=key_filename)
38 self.connection.wait()
41 """execute the benchmark"""
44 options = "-s %s" % args['options'].get("packetsize", '56')
48 destination = args.get("ipaddr", '127.0.0.1')
50 LOG.debug("ping '%s' '%s'", options, destination)
52 exit_status, stdout, stderr = self.connection.execute(
53 "/bin/sh -s {0} {1}".format(destination, options),
54 stdin=open(self.target_script, "r"))
57 raise RuntimeError(stderr)
62 sla_max_rtt = int(args["sla"]["max_rtt"])
63 assert rtt <= sla_max_rtt, "rtt %f > sla:max_rtt(%f)" % \