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authorHans Feldt <hans.feldt@ericsson.com>2015-05-20 14:08:22 +0200
committerHans Feldt <hans.feldt@ericsson.com>2015-05-20 14:08:22 +0200
commitc62813e00fd3975fb3b7d94b7b633b68c65a6bf7 (patch)
tree17fe1edb2d465350a07ef15f50ac0adc9dfd6bca
parentc157e033e65ad2e34a9c5c265a869cddcc67e106 (diff)
add ping benchmark type
This simple benchmark can be used to measure network latency. Change-Id: I41f5b9f32544b2e668d39220fcfb87ed493f4baa JIRA: - Signed-off-by: Hans Feldt <hans.feldt@ericsson.com>
-rw-r--r--yardstick/benchmark/scenarios/networking/__init__.py0
-rw-r--r--yardstick/benchmark/scenarios/networking/ping.py78
-rw-r--r--yardstick/benchmark/scenarios/networking/ping_benchmark.bash22
3 files changed, 100 insertions, 0 deletions
diff --git a/yardstick/benchmark/scenarios/networking/__init__.py b/yardstick/benchmark/scenarios/networking/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/yardstick/benchmark/scenarios/networking/__init__.py
diff --git a/yardstick/benchmark/scenarios/networking/ping.py b/yardstick/benchmark/scenarios/networking/ping.py
new file mode 100644
index 000000000..cd4054fcd
--- /dev/null
+++ b/yardstick/benchmark/scenarios/networking/ping.py
@@ -0,0 +1,78 @@
+##############################################################################
+# Copyright (c) 2015 Ericsson AB 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
+##############################################################################
+
+# ping scenario
+
+import pkg_resources
+import logging
+
+import yardstick.ssh as ssh
+from yardstick.benchmark.scenarios import base
+
+LOG = logging.getLogger(__name__)
+
+
+class Ping(base.Scenario):
+ """Executes a ping benchmark between two hosts"""
+ __scenario_type__ = "Ping"
+
+ TARGET_SCRIPT = 'ping_benchmark.bash'
+
+ def __init__(self, context):
+ self.context = context
+ self.target_script = pkg_resources.resource_filename(
+ 'yardstick.benchmark.scenarios.networking', Ping.TARGET_SCRIPT)
+ user = self.context.get('user', 'ubuntu')
+ host = self.context.get('host', None)
+ key_filename = self.context.get('key_filename', '~/.ssh/id_rsa')
+
+ LOG.debug("user:%s, host:%s", user, host)
+
+ self.connection = ssh.SSH(user, host, key_filename=key_filename)
+ self.connection.wait()
+
+ def run(self, args):
+ """execute the benchmark"""
+
+ self.options = "-s %s" % args['options'].get("packetsize", '56')
+ self.ipaddr = args.get("ipaddr", '127.0.0.1')
+
+ LOG.debug("ping %s %s", self.options, self.ipaddr)
+
+ exit_status, stdout, stderr = self.connection.execute(
+ "/bin/sh -s {0} {1}".format(self.ipaddr, self.options),
+ stdin=open(self.target_script, "r"))
+
+ if exit_status != 0:
+ raise RuntimeError(stderr)
+
+ rtt = float(stdout)
+
+ if "sla" in args:
+ sla_max_rtt = int(args["sla"]["max_rtt"])
+ assert rtt <= sla_max_rtt, "rtt %f > sla_max_rtt" % rtt
+
+ return rtt
+
+
+def _test():
+ '''internal test function'''
+ key_filename = pkg_resources.resource_filename('yardstick.resources',
+ 'files/yardstick_key')
+ ctx = {'host': '172.16.0.137',
+ 'user': 'cirros',
+ 'key_filename': key_filename}
+ p = Ping(ctx)
+ args = {'options': '-c 2 -s 200',
+ 'ipaddr': '172.16.0.138'}
+ result = p.run(args)
+ print result
+
+if __name__ == '__main__':
+ _test()
diff --git a/yardstick/benchmark/scenarios/networking/ping_benchmark.bash b/yardstick/benchmark/scenarios/networking/ping_benchmark.bash
new file mode 100644
index 000000000..6916b771a
--- /dev/null
+++ b/yardstick/benchmark/scenarios/networking/ping_benchmark.bash
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+##############################################################################
+# Copyright (c) 2015 Ericsson AB 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
+##############################################################################
+
+# Run a single ping command towards a destination and outputs the round trip
+# time in milliseconds on stdout. The count (-c) option is deliberately not
+# supported since it is supposed to be handled by the runner.
+
+set -e
+
+destination=$1
+shift
+options="$@"
+
+ping -c 1 $options $destination | grep ttl | awk -F [=\ ] '{printf $10}'