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 def _worker_process(queue, cls, method_name, scenario_cfg,
35 context_cfg, aborted):
39 runner_cfg = scenario_cfg['runner']
41 interval = runner_cfg.get("interval", 1)
42 iterations = runner_cfg.get("iterations", 1)
43 run_step = runner_cfg.get("run_step", "setup,run,teardown")
44 delta = runner_cfg.get("delta", 2)
45 options_cfg = scenario_cfg['options']
46 initial_rate = options_cfg.get("rate", 100)
47 scenario_cfg['options']['rate'] = initial_rate
48 LOG.info("worker START, iterations %d times, class %s", iterations, cls)
50 runner_cfg['runner_id'] = os.getpid()
52 benchmark = cls(scenario_cfg, context_cfg)
53 if "setup" in run_step:
56 method = getattr(benchmark, method_name)
58 queue.put({'runner_id': runner_cfg['runner_id'],
59 'scenario_cfg': scenario_cfg,
60 'context_cfg': context_cfg})
63 if "sla" in scenario_cfg:
64 sla_action = scenario_cfg["sla"].get("action", "assert")
68 LOG.debug("runner=%(runner)s seq=%(sequence)s START",
69 {"runner": runner_cfg["runner_id"],
70 "sequence": sequence})
77 except AssertionError as assertion:
78 # SLA validation failed in scenario, determine what to do now
79 if sla_action == "assert":
81 elif sla_action == "monitor":
82 LOG.warning("SLA validation failed: %s", assertion.args)
83 errors = assertion.args
84 elif sla_action == "rate-control":
85 scenario_cfg['options']['rate'] -= delta
88 except Exception as e:
89 errors = traceback.format_exc()
95 'timestamp': time.time(),
101 record = {'runner_id': runner_cfg['runner_id'],
102 'benchmark': benchmark_output}
106 LOG.debug("runner=%(runner)s seq=%(sequence)s END",
107 {"runner": runner_cfg["runner_id"],
108 "sequence": sequence})
112 if (errors and sla_action is None) or \
113 (sequence > iterations or aborted.is_set()):
114 LOG.info("worker END")
116 if "teardown" in run_step:
120 class IterationRunner(base.Runner):
121 """Run a scenario for a configurable number of times
123 If the scenario ends before the time has elapsed, it will be started again.
126 iterations - amount of times the scenario will be run for
130 interval - time to wait between each scenario invocation
135 __execution_type__ = 'Iteration'
137 def _run_benchmark(self, cls, method, scenario_cfg, context_cfg):
138 self.process = multiprocessing.Process(
139 target=_worker_process,
140 args=(self.result_queue, cls, method, scenario_cfg,
141 context_cfg, self.aborted))