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 runs a configurable number of times before it returns
22 from __future__ import absolute_import
25 import multiprocessing
30 from yardstick.benchmark.runners import base
31 from yardstick.common import exceptions as y_exc
33 LOG = logging.getLogger(__name__)
36 QUEUE_PUT_TIMEOUT = 10
39 def _worker_process(queue, cls, method_name, scenario_cfg,
40 context_cfg, aborted, output_queue):
42 runner_cfg = scenario_cfg['runner']
44 interval = runner_cfg.get("interval", 1)
45 iterations = runner_cfg.get("iterations", 1)
46 run_step = runner_cfg.get("run_step", "setup,run,teardown")
48 delta = runner_cfg.get("delta", 2)
49 LOG.info("worker START, iterations %d times, class %s", iterations, cls)
51 runner_cfg['runner_id'] = os.getpid()
53 scenario_output = base.ScenarioOutput(queue, sequence=1, errors="")
54 benchmark = cls(scenario_cfg, context_cfg)
55 if "setup" in run_step:
58 method = getattr(benchmark, method_name)
61 if "sla" in scenario_cfg:
62 sla_action = scenario_cfg["sla"].get("action", "assert")
66 LOG.debug("runner=%(runner)s seq=%(sequence)s START",
67 {"runner": runner_cfg["runner_id"],
68 "sequence": scenario_output.sequence})
70 scenario_output.clear()
71 scenario_output.errors = ""
72 benchmark.pre_run_wait_time(interval)
75 result = method(scenario_output)
76 except y_exc.SLAValidationError as error:
77 # SLA validation failed in scenario, determine what to do now
78 if sla_action == "assert":
80 elif sla_action == "monitor":
81 LOG.warning("SLA validation failed: %s", error.args)
82 scenario_output.errors = error.args
83 elif sla_action == "rate-control":
85 scenario_cfg['options']['rate']
87 scenario_cfg.setdefault('options', {})
88 scenario_cfg['options']['rate'] = 100
90 scenario_cfg['options']['rate'] -= delta
91 scenario_output.sequence = 1
93 except Exception: # pylint: disable=broad-except
94 scenario_output.errors = traceback.format_exc()
99 # add timeout for put so we don't block test
100 # if we do timeout we don't care about dropping individual KPIs
101 output_queue.put(result, True, QUEUE_PUT_TIMEOUT)
103 benchmark.post_run_wait_time(interval)
106 scenario_output.push()
108 LOG.debug("runner=%(runner)s seq=%(sequence)s END",
109 {"runner": runner_cfg["runner_id"],
110 "sequence": scenario_output.sequence})
112 scenario_output.sequence += 1
114 if (scenario_output.errors and sla_action is None) or \
115 (scenario_output.sequence > iterations or aborted.is_set()):
116 LOG.info("worker END")
118 if "teardown" in run_step:
122 # catch any exception in teardown and convert to simple exception
123 # never pass exceptions back to multiprocessing, because some exceptions can
125 # https://bugs.python.org/issue9400
129 LOG.debug("queue.qsize() = %s", queue.qsize())
130 LOG.debug("output_queue.qsize() = %s", output_queue.qsize())
133 class IterationRunner(base.Runner):
134 """Run a scenario for a configurable number of times
136 If the scenario ends before the time has elapsed, it will be started again.
139 iterations - amount of times the scenario will be run for
143 interval - time to wait between each scenario invocation
148 __execution_type__ = 'Iteration'
150 def _run_benchmark(self, cls, method, scenario_cfg, context_cfg):
151 name = "{}-{}-{}".format(self.__execution_type__, scenario_cfg.get("type"), os.getpid())
152 self.process = multiprocessing.Process(
154 target=_worker_process,
155 args=(self.result_queue, cls, method, scenario_cfg,
156 context_cfg, self.aborted, self.output_queue))