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, context, scenario_args):
29 interval = context.get("interval", 1)
30 arg_name = context.get('name')
31 stop = context.get('stop')
32 step = context.get('step')
33 options = scenario_args['options']
34 start = options.get(arg_name, 0)
36 context['runner'] = os.getpid()
38 LOG.info("worker START, step(%s, %d, %d, %d), class %s",
39 arg_name, start, stop, step, cls)
41 benchmark = cls(context)
43 method = getattr(benchmark, method_name)
45 record_context = {"runner": context["runner"],
46 "host": context["host"]}
49 if "sla" in scenario_args:
50 sla_action = scenario_args["sla"].get("action", "assert")
51 margin = 1 if step > 0 else -1
53 for value in range(start, stop+margin, step):
55 options[arg_name] = value
57 LOG.debug("runner=%(runner)s seq=%(sequence)s START" %
58 {"runner": context["runner"], "sequence": sequence})
64 data = method(scenario_args)
65 except AssertionError as assertion:
66 # SLA validation failed in scenario, determine what to do now
67 if sla_action == "assert":
69 elif sla_action == "monitor":
70 LOG.warning("SLA validation failed: %s" % assertion.args)
71 errors = assertion.args
72 except Exception as e:
73 errors = traceback.format_exc()
79 'timestamp': time.time(),
85 queue.put({'context': record_context, 'sargs:': scenario_args,
86 'benchmark': benchmark_output})
88 LOG.debug("runner=%(runner)s seq=%(sequence)s END" %
89 {"runner": context["runner"], "sequence": sequence})
97 LOG.info("worker END")
100 class ArithmeticRunner(base.Runner):
101 '''Run a scenario arithmetically stepping an input value
104 interval - time to wait between each scenario invocation
108 name - name of scenario option that will be increased for each invocation
112 start - value to use in first invocation of scenario
116 step - value added to start value in next invocation of scenario
120 stop - value indicating end of invocation
126 __execution_type__ = 'Arithmetic'
128 def _run_benchmark(self, cls, method, scenario_args):
129 self.process = multiprocessing.Process(
130 target=_worker_process,
131 args=(self.result_queue, cls, method, self.config, scenario_args))