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 ##############################################################################
13 import yardstick.ssh as ssh
14 from yardstick.benchmark.scenarios import base
16 LOG = logging.getLogger(__name__)
19 class Perf(base.Scenario):
20 """Execute perf benchmark in a host
23 events - perf tool software, hardware or tracepoint events
26 default: ['task-clock']
27 load - simulate load on the host by doing IO operations
32 For more info about perf and perf events see https://perf.wiki.kernel.org
35 __scenario_type__ = "Perf"
37 TARGET_SCRIPT = 'perf_benchmark.bash'
39 def __init__(self, scenario_cfg, context_cfg):
40 self.scenario_cfg = scenario_cfg
41 self.context_cfg = context_cfg
42 self.setup_done = False
46 self.target_script = pkg_resources.resource_filename(
47 'yardstick.benchmark.scenarios.compute', Perf.TARGET_SCRIPT)
48 host = self.context_cfg['host']
49 user = host.get('user', 'ubuntu')
50 ip = host.get('ip', None)
51 key_filename = host.get('key_filename', '~/.ssh/id_rsa')
53 LOG.info("user:%s, host:%s", user, ip)
54 self.client = ssh.SSH(user, ip, key_filename=key_filename)
55 self.client.wait(timeout=600)
58 self.client.run("cat > ~/perf_benchmark.sh",
59 stdin=open(self.target_script, "rb"))
61 self.setup_done = True
63 def run(self, result):
64 """execute the benchmark"""
66 if not self.setup_done:
69 options = self.scenario_cfg['options']
70 events = options.get('events', ['task-clock'])
74 events_string += event + " "
76 # if run by a duration runner
77 duration_time = self.scenario_cfg["runner"].get("duration", None) \
78 if "runner" in self.scenario_cfg else None
79 # if run by an arithmetic runner
80 arithmetic_time = options.get("duration", None)
82 duration = duration_time
84 duration = arithmetic_time
89 load = "dd if=/dev/urandom of=/dev/null"
91 load = "sleep %d" % duration
93 cmd = "sudo bash perf_benchmark.sh '%s' %d %s" \
94 % (load, duration, events_string)
96 LOG.debug("Executing command: %s", cmd)
97 status, stdout, stderr = self.client.execute(cmd)
100 raise RuntimeError(stdout)
102 result.update(json.loads(stdout))
104 if "sla" in self.scenario_cfg:
105 metric = self.scenario_cfg['sla']['metric']
106 exp_val = self.scenario_cfg['sla']['expected_value']
107 smaller_than_exp = 'smaller_than_expected' \
108 in self.scenario_cfg['sla']
110 if metric not in result:
111 assert False, "Metric (%s) not found." % metric
114 assert result[metric] < exp_val, "%s %d >= %d (sla); " \
115 % (metric, result[metric], exp_val)
117 assert result[metric] >= exp_val, "%s %d < %d (sla); " \
118 % (metric, result[metric], exp_val)
122 """internal test function"""
123 key_filename = pkg_resources.resource_filename('yardstick.resources',
124 'files/yardstick_key')
127 'ip': '10.229.47.137',
129 'key_filename': key_filename
133 logger = logging.getLogger('yardstick')
134 logger.setLevel(logging.DEBUG)
136 options = {'load': True}
137 args = {'options': options}
144 if __name__ == '__main__':