1 ##############################################################################
2 # Copyright (c) 2015 Ericsson AB and others.
4 # All rights reserved. This program and the accompanying materials
5 # are made available under the terms of the Apache License, Version 2.0
6 # which accompanies this distribution, and is available at
7 # http://www.apache.org/licenses/LICENSE-2.0
8 ##############################################################################
10 '''A runner that every run arithmetically steps a specified input value to
11 the scenario. This just means a step value is added to the previous value.
15 import multiprocessing
20 from yardstick.benchmark.runners import base
22 LOG = logging.getLogger(__name__)
25 def _worker_process(queue, cls, method_name, scenario_cfg):
29 runner_cfg = scenario_cfg['runner']
31 interval = runner_cfg.get("interval", 1)
32 arg_name = runner_cfg.get('name')
33 stop = runner_cfg.get('stop')
34 step = runner_cfg.get('step')
35 options = scenario_cfg['options']
36 start = options.get(arg_name, 0)
38 runner_cfg['runner_id'] = os.getpid()
40 LOG.info("worker START, step(%s, %d, %d, %d), class %s",
41 arg_name, start, stop, step, cls)
43 benchmark = cls(runner_cfg)
45 method = getattr(benchmark, method_name)
47 queue.put({'runner_id': runner_cfg['runner_id'],
48 'scenario_cfg': scenario_cfg})
51 if "sla" in scenario_cfg:
52 sla_action = scenario_cfg["sla"].get("action", "assert")
53 margin = 1 if step > 0 else -1
55 for value in range(start, stop+margin, step):
57 options[arg_name] = value
59 LOG.debug("runner=%(runner)s seq=%(sequence)s START" %
60 {"runner": runner_cfg["runner_id"], "sequence": sequence})
66 method(scenario_cfg, data)
67 except AssertionError as assertion:
68 # SLA validation failed in scenario, determine what to do now
69 if sla_action == "assert":
71 elif sla_action == "monitor":
72 LOG.warning("SLA validation failed: %s" % assertion.args)
73 errors = assertion.args
74 except Exception as e:
75 errors = traceback.format_exc()
81 'timestamp': time.time(),
87 record = {'runner_id': runner_cfg['runner_id'],
88 'benchmark': benchmark_output}
92 LOG.debug("runner=%(runner)s seq=%(sequence)s END" %
93 {"runner": runner_cfg["runner_id"], "sequence": sequence})
101 LOG.info("worker END")
104 class ArithmeticRunner(base.Runner):
105 '''Run a scenario arithmetically stepping an input value
108 interval - time to wait between each scenario invocation
112 name - name of scenario option that will be increased for each invocation
116 start - value to use in first invocation of scenario
120 step - value added to start value in next invocation of scenario
124 stop - value indicating end of invocation
130 __execution_type__ = 'Arithmetic'
132 def _run_benchmark(self, cls, method, scenario_cfg):
133 self.process = multiprocessing.Process(
134 target=_worker_process,
135 args=(self.result_queue, cls, method, scenario_cfg))