# ping scenario
+from __future__ import print_function
+from __future__ import absolute_import
import pkg_resources
import logging
import yardstick.ssh as ssh
+from yardstick.common import utils
from yardstick.benchmark.scenarios import base
LOG = logging.getLogger(__name__)
class Ping(base.Scenario):
"""Execute ping between two hosts
+ If ping error, RTT will be set to 999999
+
Parameters
packetsize - number of data bytes to send
type: int
__scenario_type__ = "Ping"
+ PING_ERROR_RTT = 999999
+
TARGET_SCRIPT = 'ping_benchmark.bash'
- def __init__(self, context):
- self.context = context
+ def __init__(self, scenario_cfg, context_cfg):
+ self.scenario_cfg = scenario_cfg
+ self.context_cfg = context_cfg
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')
+ host = self.context_cfg['host']
- LOG.info("user:%s, host:%s", user, host)
+ self.connection = ssh.SSH.from_node(host, defaults={"user": "ubuntu"})
- self.connection = ssh.SSH(user, host, key_filename=key_filename)
- self.connection.wait()
+ self.connection.wait(timeout=600)
- def run(self, args, result):
+ def run(self, result):
"""execute the benchmark"""
- if "options" in args:
- options = "-s %s" % args['options'].get("packetsize", '56')
+ if "options" in self.scenario_cfg:
+ options = "-s %s" % \
+ self.scenario_cfg['options'].get("packetsize", '56')
else:
options = ""
- destination = args.get("ipaddr", '127.0.0.1')
-
- LOG.debug("ping '%s' '%s'", options, destination)
-
- exit_status, stdout, stderr = self.connection.execute(
- "/bin/sh -s {0} {1}".format(destination, options),
- stdin=open(self.target_script, "r"))
-
- if exit_status != 0:
- raise RuntimeError(stderr)
-
- result["rtt"] = float(stdout)
-
- if "sla" in args:
- sla_max_rtt = int(args["sla"]["max_rtt"])
- assert result["rtt"] <= sla_max_rtt, "rtt %f > sla:max_rtt(%f); " % \
- (result["rtt"], sla_max_rtt)
+ destination = self.context_cfg['target'].get('ipaddr', '127.0.0.1')
+ dest_list = [s.strip() for s in destination.split(',')]
+
+ rtt_result = {}
+ ping_result = {"rtt": rtt_result}
+ sla_max_rtt = self.scenario_cfg.get("sla", {}).get("max_rtt")
+
+ for pos, dest in enumerate(dest_list):
+ if 'targets' in self.scenario_cfg:
+ target_vm = self.scenario_cfg['targets'][pos]
+ else:
+ target_vm = self.scenario_cfg['target']
+
+ LOG.debug("ping %s %s", options, dest)
+ with open(self.target_script, "r") as stdin_file:
+ exit_status, stdout, stderr = self.connection.execute(
+ "/bin/sh -s {0} {1}".format(dest, options),
+ stdin=stdin_file)
+
+ if exit_status != 0:
+ raise RuntimeError(stderr)
+
+ if isinstance(target_vm, dict):
+ target_vm_name = target_vm.get("name")
+ else:
+ target_vm_name = target_vm.split('.')[0]
+ if stdout:
+ rtt_result[target_vm_name] = float(stdout.strip())
+ # store result before potential AssertionError
+ result.update(utils.flatten_dict_key(ping_result))
+ if sla_max_rtt is not None:
+ sla_max_rtt = float(sla_max_rtt)
+ self.verify_SLA(
+ rtt_result[target_vm_name] <= sla_max_rtt,
+ "rtt %f > sla: max_rtt(%f); "
+ % (rtt_result[target_vm_name], sla_max_rtt))
+ else:
+ LOG.error("ping '%s' '%s' timeout", options, target_vm)
+ # we need to specify a result to satisfy influxdb schema
+ # choose a very large number to inidcate timeout
+ # in this case choose an order of magnitude greater than the SLA
+ rtt_result[target_vm_name] = float(self.PING_ERROR_RTT)
+ # store result before potential AssertionError
+ result.update(utils.flatten_dict_key(ping_result))
+ self.verify_SLA(sla_max_rtt is None,
+ "packet dropped rtt %f > sla: max_rtt(%f)"
+ % (rtt_result[target_vm_name], sla_max_rtt))
+ self.verify_SLA(False,
+ "packet dropped rtt %f"
+ % (rtt_result[target_vm_name]))
+
+
+def _test(): # pragma: no cover
+ """internal test function"""
+ key_filename = pkg_resources.resource_filename("yardstick.resources",
+ "files/yardstick_key")
+ ctx = {
+ "host": {
+ "ip": "10.229.47.137",
+ "user": "root",
+ "key_filename": key_filename
+ },
+ "target": {
+ "ipaddr": "10.229.17.105",
+ }
+ }
+
+ logger = logging.getLogger("yardstick")
+ logger.setLevel(logging.DEBUG)
+
+ args = {}
+ result = {}
+
+ p = Ping(args, ctx)
+ p.run(result)
+ print(result)
+
+
+if __name__ == '__main__': # pragma: no cover
+ _test()
Code Review / yardstick.git / blobdiff