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
24 import multiprocessing
29 from yardstick.benchmark.runners import base
31 LOG = logging.getLogger(__name__)
34 QUEUE_PUT_TIMEOUT = 10
37 def _worker_process(queue, cls, method_name, scenario_cfg,
38 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 benchmark = cls(scenario_cfg, context_cfg)
54 if "setup" in run_step:
57 method = getattr(benchmark, method_name)
60 if "sla" in scenario_cfg:
61 sla_action = scenario_cfg["sla"].get("action", "assert")
65 LOG.debug("runner=%(runner)s seq=%(sequence)s START",
66 {"runner": runner_cfg["runner_id"],
67 "sequence": sequence})
74 except AssertionError as assertion:
75 # SLA validation failed in scenario, determine what to do now
76 if sla_action == "assert":
78 elif sla_action == "monitor":
79 LOG.warning("SLA validation failed: %s", assertion.args)
80 errors = assertion.args
81 elif sla_action == "rate-control":
83 scenario_cfg['options']['rate']
85 scenario_cfg.setdefault('options', {})
86 scenario_cfg['options']['rate'] = 100
88 scenario_cfg['options']['rate'] -= delta
91 except Exception as e:
92 errors = traceback.format_exc()
96 # add timeout for put so we don't block test
97 # if we do timeout we don't care about dropping individual KPIs
98 output_queue.put(result, True, QUEUE_PUT_TIMEOUT)
103 'timestamp': time.time(),
104 'sequence': sequence,
109 queue.put(benchmark_output, True, QUEUE_PUT_TIMEOUT)
111 LOG.debug("runner=%(runner)s seq=%(sequence)s END",
112 {"runner": runner_cfg["runner_id"],
113 "sequence": sequence})
117 if (errors and sla_action is None) or \
118 (sequence > iterations or aborted.is_set()):
119 LOG.info("worker END")
121 if "teardown" in run_step:
125 # catch any exception in teardown and convert to simple exception
126 # never pass exceptions back to multiprocessing, because some exceptions can
128 # https://bugs.python.org/issue9400
132 LOG.debug("queue.qsize() = %s", queue.qsize())
133 LOG.debug("output_queue.qsize() = %s", output_queue.qsize())
136 class IterationRunner(base.Runner):
137 """Run a scenario for a configurable number of times
139 If the scenario ends before the time has elapsed, it will be started again.
142 iterations - amount of times the scenario will be run for
146 interval - time to wait between each scenario invocation
151 __execution_type__ = 'Iteration'
153 def _run_benchmark(self, cls, method, scenario_cfg, context_cfg):
154 self.process = multiprocessing.Process(
155 target=_worker_process,
156 args=(self.result_queue, cls, method, scenario_cfg,
157 context_cfg, self.aborted, self.output_queue))