mirror of
https://github.com/ARM-software/workload-automation.git
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110 lines
4.3 KiB
Python
110 lines
4.3 KiB
Python
# Copyright 2013-2015 ARM Limited
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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#pylint: disable=E1101,W0201
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import os
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import re
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from wlauto import Workload, Parameter
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from wlauto.exceptions import ConfigError
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this_dir = os.path.dirname(__file__)
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class Dhrystone(Workload):
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name = 'dhrystone'
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description = """
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Runs the Dhrystone benchmark.
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Original source from::
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http://classes.soe.ucsc.edu/cmpe202/benchmarks/standard/dhrystone.c
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This version has been modified to configure duration and the number of
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threads used.
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"""
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bm_regex = re.compile(r'This machine benchmarks at (?P<score>\d+)')
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dmips_regex = re.compile(r'(?P<score>\d+) DMIPS')
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time_regex = re.compile(r'Total dhrystone run time: (?P<time>[0-9.]+)')
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default_mloops = 100
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parameters = [
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Parameter('duration', kind=int, default=0,
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description='The duration, in seconds, for which dhrystone will be executed. '
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'Either this or ``mloops`` should be specified but not both.'),
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Parameter('mloops', kind=int, default=0,
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description='Millions of loops to run. Either this or ``duration`` should be '
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'specified, but not both. If neither is specified, this will default '
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'to ``{}``'.format(default_mloops)),
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Parameter('threads', kind=int, default=4,
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description='The number of separate dhrystone "threads" that will be forked.'),
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Parameter('delay', kind=int, default=0,
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description=('The delay, in seconds, between kicking off of dhrystone '
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'threads (if ``threads`` > 1).')),
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]
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def setup(self, context):
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host_exe = os.path.join(this_dir, 'dhrystone')
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self.device_exe = self.device.install(host_exe)
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execution_mode = '-l {}'.format(self.mloops) if self.mloops else '-r {}'.format(self.duration)
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self.command = '{} {} -t {} -d {}'.format(self.device_exe,
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execution_mode,
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self.threads, self.delay)
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self.timeout = self.duration and self.duration + self.delay * self.threads + 10 or 300
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def run(self, context):
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self.output = self.device.execute(self.command, timeout=self.timeout, check_exit_code=False)
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def update_result(self, context):
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outfile = os.path.join(context.output_directory, 'dhrystone.output')
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with open(outfile, 'w') as wfh:
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wfh.write(self.output)
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score_count = 0
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dmips_count = 0
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for line in self.output.split('\n'):
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match = self.time_regex.search(line)
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if match:
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context.result.add_metric('time', float(match.group('time')), 'seconds', lower_is_better=True)
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else:
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match = self.bm_regex.search(line)
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if match:
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metric = 'thread {} score'.format(score_count)
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value = int(match.group('score'))
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context.result.add_metric(metric, value)
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score_count += 1
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else:
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match = self.dmips_regex.search(line)
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if match:
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metric = 'thread {} DMIPS'.format(dmips_count)
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value = int(match.group('score'))
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context.result.add_metric(metric, value)
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dmips_count += 1
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def teardown(self, context):
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self.device.uninstall_executable('dhrystone')
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def validate(self):
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if self.mloops and self.duration: # pylint: disable=E0203
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raise ConfigError('mloops and duration cannot be both specified at the same time for dhrystone.')
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if not self.mloops and not self.duration: # pylint: disable=E0203
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self.mloops = self.default_mloops
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