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):
43 runner_cfg = scenario_cfg['runner']
45 interval = runner_cfg.get("interval", 1)
46 arg_name = runner_cfg.get('scenario_option_name')
47 sequence_values = runner_cfg.get('sequence')
49 if 'options' not in scenario_cfg:
50 scenario_cfg['options'] = {}
52 options = scenario_cfg['options']
54 runner_cfg['runner_id'] = os.getpid()
56 LOG.info("worker START, sequence_values(%s, %s), class %s",
57 arg_name, sequence_values, cls)
59 benchmark = cls(scenario_cfg, context_cfg)
61 method = getattr(benchmark, method_name)
64 if "sla" in scenario_cfg:
65 sla_action = scenario_cfg["sla"].get("action", "assert")
67 for value in sequence_values:
68 options[arg_name] = value
70 LOG.debug("runner=%(runner)s seq=%(sequence)s START",
71 {"runner": runner_cfg["runner_id"], "sequence": sequence})
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)
85 except Exception as e: # pylint: disable=broad-except
86 errors = traceback.format_exc()
90 output_queue.put(result)
95 'timestamp': time.time(),
101 queue.put(benchmark_output)
103 LOG.debug("runner=%(runner)s seq=%(sequence)s END",
104 {"runner": runner_cfg["runner_id"], "sequence": sequence})
108 if (errors and sla_action is None) or aborted.is_set():
114 # catch any exception in teardown and convert to simple exception
115 # never pass exceptions back to multiprocessing, because some exceptions can
117 # https://bugs.python.org/issue9400
120 LOG.info("worker END")
121 LOG.debug("queue.qsize() = %s", queue.qsize())
122 LOG.debug("output_queue.qsize() = %s", output_queue.qsize())
125 class SequenceRunner(base.Runner):
126 """Run a scenario by changing an input value defined in a list
129 interval - time to wait between each scenario invocation
133 scenario_option_name - name of the option that is increased each invocation
137 sequence - list of values which are executed in their respective scenarios
143 __execution_type__ = 'Sequence'
145 def _run_benchmark(self, cls, method, scenario_cfg, context_cfg):
146 name = "{}-{}-{}".format(self.__execution_type__, scenario_cfg.get("type"), os.getpid())
147 self.process = multiprocessing.Process(
149 target=_worker_process,
150 args=(self.result_queue, cls, method, scenario_cfg,
151 context_cfg, self.aborted, self.output_queue))