98cde3f400
This will allow to distinguish between the standard runner and the num fuzzer on the infra side when generating flako command lines. The value could be inferred, but it'd be more confusing. Bug: v8:8971 Change-Id: I78f5104135d1c7fd7d98bceb4b17897e79421455 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1564050 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org> Cr-Commit-Position: refs/heads/master@{#60769}
227 lines
8.2 KiB
Python
Executable File
227 lines
8.2 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2017 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# for py2/py3 compatibility
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from __future__ import print_function
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import random
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import sys
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# Adds testrunner to the path hence it has to be imported at the beggining.
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import base_runner
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from testrunner.local import utils
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from testrunner.testproc import fuzzer
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from testrunner.testproc.base import TestProcProducer
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from testrunner.testproc.combiner import CombinerProc
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from testrunner.testproc.execution import ExecutionProc
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from testrunner.testproc.expectation import ForgiveTimeoutProc
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from testrunner.testproc.filter import StatusFileFilterProc, NameFilterProc
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from testrunner.testproc.loader import LoadProc
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from testrunner.testproc.progress import ResultsTracker
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from testrunner.utils import random_utils
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DEFAULT_SUITES = ["mjsunit", "webkit", "benchmarks"]
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class NumFuzzer(base_runner.BaseTestRunner):
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def __init__(self, *args, **kwargs):
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super(NumFuzzer, self).__init__(*args, **kwargs)
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@property
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def framework_name(self):
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return 'num_fuzzer'
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def _add_parser_options(self, parser):
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parser.add_option("--fuzzer-random-seed", default=0,
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help="Default seed for initializing fuzzer random "
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"generator")
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parser.add_option("--tests-count", default=5, type="int",
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help="Number of tests to generate from each base test. "
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"Can be combined with --total-timeout-sec with "
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"value 0 to provide infinite number of subtests. "
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"When --combine-tests is set it indicates how many "
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"tests to create in total")
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# Stress gc
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parser.add_option("--stress-marking", default=0, type="int",
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help="probability [0-10] of adding --stress-marking "
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"flag to the test")
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parser.add_option("--stress-scavenge", default=0, type="int",
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help="probability [0-10] of adding --stress-scavenge "
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"flag to the test")
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parser.add_option("--stress-compaction", default=0, type="int",
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help="probability [0-10] of adding --stress-compaction "
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"flag to the test")
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parser.add_option("--stress-gc", default=0, type="int",
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help="probability [0-10] of adding --random-gc-interval "
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"flag to the test")
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# Stress tasks
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parser.add_option("--stress-delay-tasks", default=0, type="int",
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help="probability [0-10] of adding --stress-delay-tasks "
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"flag to the test")
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parser.add_option("--stress-thread-pool-size", default=0, type="int",
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help="probability [0-10] of adding --thread-pool-size "
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"flag to the test")
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# Stress deopt
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parser.add_option("--stress-deopt", default=0, type="int",
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help="probability [0-10] of adding --deopt-every-n-times "
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"flag to the test")
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parser.add_option("--stress-deopt-min", default=1, type="int",
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help="extends --stress-deopt to have minimum interval "
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"between deopt points")
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# Combine multiple tests
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parser.add_option("--combine-tests", default=False, action="store_true",
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help="Combine multiple tests as one and run with "
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"try-catch wrapper")
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parser.add_option("--combine-max", default=100, type="int",
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help="Maximum number of tests to combine")
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parser.add_option("--combine-min", default=2, type="int",
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help="Minimum number of tests to combine")
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# Miscellaneous
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parser.add_option("--variants", default='default',
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help="Comma-separated list of testing variants")
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return parser
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def _process_options(self, options):
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if not options.fuzzer_random_seed:
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options.fuzzer_random_seed = random_utils.random_seed()
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if options.total_timeout_sec:
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options.tests_count = 0
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if options.combine_tests:
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if options.combine_min > options.combine_max:
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print(('min_group_size (%d) cannot be larger than max_group_size (%d)' %
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options.min_group_size, options.max_group_size))
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raise base_runner.TestRunnerError()
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if options.variants != 'default':
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print ('Only default testing variant is supported with numfuzz')
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raise base_runner.TestRunnerError()
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return True
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def _get_default_suite_names(self):
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return DEFAULT_SUITES
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def _get_statusfile_variables(self, options):
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variables = (
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super(NumFuzzer, self)._get_statusfile_variables(options))
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variables.update({
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'deopt_fuzzer': bool(options.stress_deopt),
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'endurance_fuzzer': bool(options.combine_tests),
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'gc_stress': bool(options.stress_gc),
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'gc_fuzzer': bool(max([options.stress_marking,
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options.stress_scavenge,
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options.stress_compaction,
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options.stress_gc,
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options.stress_delay_tasks,
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options.stress_thread_pool_size])),
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})
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return variables
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def _do_execute(self, tests, args, options):
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loader = LoadProc(tests)
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fuzzer_rng = random.Random(options.fuzzer_random_seed)
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combiner = self._create_combiner(fuzzer_rng, options)
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results = self._create_result_tracker(options)
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execproc = ExecutionProc(options.j)
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sigproc = self._create_signal_proc()
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indicators = self._create_progress_indicators(
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tests.test_count_estimate, options)
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procs = [
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loader,
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NameFilterProc(args) if args else None,
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StatusFileFilterProc(None, None),
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# TODO(majeski): Improve sharding when combiner is present. Maybe select
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# different random seeds for shards instead of splitting tests.
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self._create_shard_proc(options),
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ForgiveTimeoutProc(),
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combiner,
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self._create_fuzzer(fuzzer_rng, options),
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sigproc,
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] + indicators + [
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results,
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self._create_timeout_proc(options),
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self._create_rerun_proc(options),
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execproc,
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]
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self._prepare_procs(procs)
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loader.load_initial_tests(initial_batch_size=float('inf'))
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# TODO(majeski): maybe some notification from loader would be better?
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if combiner:
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combiner.generate_initial_tests(options.j * 4)
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# This starts up worker processes and blocks until all tests are
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# processed.
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execproc.run()
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for indicator in indicators:
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indicator.finished()
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print('>>> %d tests ran' % results.total)
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if results.failed:
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return utils.EXIT_CODE_FAILURES
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# Indicate if a SIGINT or SIGTERM happened.
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return sigproc.exit_code
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def _is_testsuite_supported(self, suite, options):
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return not options.combine_tests or suite.test_combiner_available()
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def _create_combiner(self, rng, options):
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if not options.combine_tests:
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return None
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return CombinerProc(rng, options.combine_min, options.combine_max,
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options.tests_count)
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def _create_fuzzer(self, rng, options):
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return fuzzer.FuzzerProc(
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rng,
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self._tests_count(options),
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self._create_fuzzer_configs(options),
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self._disable_analysis(options),
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)
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def _tests_count(self, options):
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if options.combine_tests:
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return 1
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return options.tests_count
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def _disable_analysis(self, options):
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"""Disable analysis phase when options are used that don't support it."""
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return options.combine_tests
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def _create_fuzzer_configs(self, options):
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fuzzers = []
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def add(name, prob, *args):
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if prob:
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fuzzers.append(fuzzer.create_fuzzer_config(name, prob, *args))
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add('compaction', options.stress_compaction)
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add('marking', options.stress_marking)
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add('scavenge', options.stress_scavenge)
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add('gc_interval', options.stress_gc)
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add('threads', options.stress_thread_pool_size)
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add('delay', options.stress_delay_tasks)
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add('deopt', options.stress_deopt, options.stress_deopt_min)
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return fuzzers
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if __name__ == '__main__':
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sys.exit(NumFuzzer().execute())
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