1 # Copyright 2014: Mirantis Inc.
4 # Licensed under the Apache License, Version 2.0 (the "License"); you may
5 # not use this file except in compliance with the License. You may obtain
6 # a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 # License for the specific language governing permissions and limitations
16 # yardstick comment: this is a modified copy of
17 # rally/rally/benchmark/runners/constant.py
19 """A runner that every run changes a specified input value to the scenario.
20 The input value in the sequence is specified in a list in the input file.
23 from __future__ import absolute_import
26 import multiprocessing
32 from yardstick.benchmark.runners import base
33 from yardstick.common import exceptions as y_exc
35 LOG = logging.getLogger(__name__)
38 def _worker_process(queue, cls, method_name, scenario_cfg,
39 context_cfg, aborted, output_queue):
41 runner_cfg = scenario_cfg['runner']
43 interval = runner_cfg.get("interval", 1)
44 arg_name = runner_cfg.get('scenario_option_name')
45 sequence_values = runner_cfg.get('sequence')
47 if 'options' not in scenario_cfg:
48 scenario_cfg['options'] = {}
50 options = scenario_cfg['options']
52 runner_cfg['runner_id'] = os.getpid()
54 LOG.info("worker START, sequence_values(%s, %s), class %s",
55 arg_name, sequence_values, cls)
57 scenario_output = base.ScenarioOutput(queue, sequence=1, errors="")
58 benchmark = cls(scenario_cfg, context_cfg)
60 method = getattr(benchmark, method_name)
63 if "sla" in scenario_cfg:
64 sla_action = scenario_cfg["sla"].get("action", "assert")
66 for value in sequence_values:
67 options[arg_name] = value
69 LOG.debug("runner=%(runner)s seq=%(sequence)s START",
70 {"runner": runner_cfg["runner_id"],
71 "sequence": scenario_output.sequence})
73 scenario_output.clear()
74 scenario_output.errors = ""
77 result = method(scenario_output)
78 except y_exc.SLAValidationError as error:
79 # SLA validation failed in scenario, determine what to do now
80 if sla_action == "assert":
82 elif sla_action == "monitor":
83 LOG.warning("SLA validation failed: %s", error.args)
84 scenario_output.errors = error.args
85 except Exception as e: # pylint: disable=broad-except
86 scenario_output.errors = traceback.format_exc()
90 output_queue.put(result)
95 scenario_output.push()
97 LOG.debug("runner=%(runner)s seq=%(sequence)s END",
98 {"runner": runner_cfg["runner_id"],
99 "sequence": scenario_output.sequence})
101 scenario_output.sequence += 1
103 if (scenario_output.errors and sla_action is None) or aborted.is_set():
109 # catch any exception in teardown and convert to simple exception
110 # never pass exceptions back to multiprocessing, because some exceptions can
112 # https://bugs.python.org/issue9400
115 LOG.info("worker END")
116 LOG.debug("queue.qsize() = %s", queue.qsize())
117 LOG.debug("output_queue.qsize() = %s", output_queue.qsize())
120 class SequenceRunner(base.Runner):
121 """Run a scenario by changing an input value defined in a list
124 interval - time to wait between each scenario invocation
128 scenario_option_name - name of the option that is increased each invocation
132 sequence - list of values which are executed in their respective scenarios
138 __execution_type__ = 'Sequence'
140 def _run_benchmark(self, cls, method, scenario_cfg, context_cfg):
141 name = "{}-{}-{}".format(self.__execution_type__, scenario_cfg.get("type"), os.getpid())
142 self.process = multiprocessing.Process(
144 target=_worker_process,
145 args=(self.result_queue, cls, method, scenario_cfg,
146 context_cfg, self.aborted, self.output_queue))