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https://github.com/ARM-software/workload-automation.git
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2ff06af632
As part of resolving a resource, record its MD5 hash in the output metadata. In order to enable this, resource resolution is now done via the context, rather than directly via the ResourceResolver (in order not to introduce a context dependency in the Gui object, context now emulates the resolver interface).
89 lines
3.0 KiB
Python
89 lines
3.0 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 wa import Workload, Parameter, Executable
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from wa.utils.exec_control import once
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from wa.utils.types import cpu_mask
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THIS_DIR = os.path.dirname(__file__)
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RESULT_REGEX = re.compile('Total time: ([\d.]+) s.*Bandwidth: ([\d.]+) MB/s', re.S)
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class Memcpy(Workload):
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name = 'memcpy'
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description = """
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Runs memcpy in a loop.
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This will run memcpy in a loop for a specified number of times on a buffer
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of a specified size. Additionally, the affinity of the test can be set to
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one or more specific cores.
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This workload is single-threaded. It generates no scores or metrics by
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itself.
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"""
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parameters = [
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Parameter('buffer_size', kind=int, default=1024 * 1024 * 5,
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description='''
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Specifies the size, in bytes, of the buffer to be copied.
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'''),
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Parameter('loops', kind=int, default=1000, aliases=['iterations'],
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description='''
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Specfies the number of iterations that will be performed.
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'''),
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Parameter('cpus', kind=cpu_mask, default=0,
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description='''
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The cpus for which the affinity of the test
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process should be set, specified as a mask, as a list of
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cpus or a sysfs-style string. If not specified, all available
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cores will be used.
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'''),
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]
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@once
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def initialize(self, context):
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self.binary_name = 'memcpy'
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resource = Executable(self, self.target.abi, self.binary_name)
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host_binary = context.get_resource(resource)
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Memcpy.target_exe = self.target.install_if_needed(host_binary)
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def setup(self, context):
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self.command = '{} -i {} -s {}'.format(Memcpy.target_exe, self.loops, self.buffer_size)
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for c in (self.cpus.list()):
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self.command += ' -c {}'.format(c)
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self.result = None
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def run(self, context):
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self.result = self.target.execute(self.command, timeout=300)
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def extract_results(self, context):
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if self.result:
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match = RESULT_REGEX.search(self.result)
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context.add_metric('time', float(match.group(1)), 'seconds', lower_is_better=True)
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context.add_metric('bandwidth', float(match.group(2)), 'MB/s')
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@once
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def finalize(self, context):
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self.target.uninstall('memcpy')
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