mirror of
https://github.com/ARM-software/workload-automation.git
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78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
# Copyright 2014-2015 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=W0613,W0201
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import os
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import csv
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import time
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import threading
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import logging
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from operator import itemgetter
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from wlauto import Instrument, File, Parameter
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from wlauto.exceptions import InstrumentError
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class JunoEnergy(Instrument):
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name = 'juno_energy'
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description = """
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Collects internal energy meter measurements from Juno development board.
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This instrument was created because (at the time of creation) Juno's energy
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meter measurements aren't exposed through HWMON or similar standardized mechanism,
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necessitating a dedicated instrument to access them.
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This instrument, and the ``readenergy`` executable it relies on are very much tied
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to the Juno platform and are not expected to work on other boards.
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"""
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parameters = [
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Parameter('period', kind=float, default=0.1,
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description='Specifies the time, in Seconds, between polling energy counters.'),
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]
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def on_run_init(self, context):
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local_file = context.resolver.get(File(self, 'readenergy'))
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self.device.killall('readenergy', as_root=True)
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self.readenergy = self.device.install(local_file)
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def setup(self, context):
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self.host_output_file = os.path.join(context.output_directory, 'energy.csv')
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self.device_output_file = self.device.path.join(self.device.working_directory, 'energy.csv')
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self.command = '{} -o {}'.format(self.readenergy, self.device_output_file)
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self.device.killall('readenergy', as_root=True)
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def start(self, context):
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self.device.kick_off(self.command)
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def stop(self, context):
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self.device.killall('readenergy', signal='TERM', as_root=True)
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def update_result(self, context):
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self.device.pull_file(self.device_output_file, self.host_output_file)
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context.add_artifact('junoenergy', self.host_output_file, 'data')
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def teardown(self, conetext):
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self.device.delete_file(self.device_output_file)
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def validate(self):
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if self.device.name.lower() != 'juno':
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message = 'juno_energy instrument is only supported on juno devices; found {}'
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raise InstrumentError(message.format(self.device.name))
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