Source code for wlauto.workloads.hackbench

#    Copyright 2013-2015 ARM Limited
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.

# pylint: disable=W0201, C0103

import os
import re

from wlauto import Workload, Parameter, Executable

hackbench_results_txt = 'hackbench_results.txt'

regex_map = {"total_groups": (re.compile(r'(\d+) groups'), "groups"),
             "total_fd": (re.compile(r'(\d+) file descriptors'), "file_descriptors"),
             "total_messages": (re.compile(r'(\d+) messages'), "messages"),
             "total_bytes": (re.compile(r'(\d+) bytes'), "bytes"),
             "test_time": (re.compile(r'Time: (\d+.*)'), "seconds")

[docs]class Hackbench(Workload): name = 'hackbench' description = """ Hackbench runs a series of tests for the Linux scheduler. For details, go to: """ parameters = [ # Workload parameters go here e.g. Parameter('datasize', kind=int, default=100, description='Message size in bytes.'), Parameter('groups', kind=int, default=10, description='Number of groups.'), Parameter('loops', kind=int, default=100, description='Number of loops.'), Parameter('fds', kind=int, default=40, description='Number of file descriptors.'), Parameter('extra_params', kind=str, default='', description='Extra parameters to pass in. See the hackbench man page' ' or type `hackbench --help` for list of options.'), Parameter('duration', kind=int, default=30, description='Test duration in seconds.') ]
[docs] def setup(self, context): timeout_buf = 10 self.command = '{} -s {} -g {} -l {} {} > {}' self.device_binary = None self.hackbench_result = os.path.join(self.device.working_directory, hackbench_results_txt) self.run_timeout = self.duration + timeout_buf self.binary_name = 'hackbench' host_binary = context.resolver.get(Executable(self, self.device.abi, self.binary_name)) self.device_binary = self.device.install(host_binary) self.command = self.command.format(self.device_binary, self.datasize, self.groups, self.loops, self.extra_params, self.hackbench_result)
[docs] def run(self, context): self.device.execute(self.command, timeout=self.run_timeout)
[docs] def update_result(self, context): self.device.pull_file(self.hackbench_result, context.output_directory) with open(os.path.join(context.output_directory, hackbench_results_txt)) as hackbench_file: for line in hackbench_file: for label, (regex, units) in regex_map.iteritems(): match = if match: context.result.add_metric(label, float(, units)
[docs] def teardown(self, context): self.device.uninstall_executable(self.binary_name) self.device.execute('rm -f {}'.format(self.hackbench_result))
def validate(self): pass