mirror of
https://github.com/ARM-software/workload-automation.git
synced 2025-01-19 20:34:30 +00:00
c105e8357c
- Summary metrics are now calculated from the contents of energy.csv and added to the overall results. - Added a new "strict" parameter. If this is set to False, the device check during validation is omitted.
110 lines
3.9 KiB
Python
110 lines
3.9 KiB
Python
# Copyright 2014-2015 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
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
|
|
|
|
# pylint: disable=W0613,W0201
|
|
import os
|
|
import csv
|
|
import time
|
|
import threading
|
|
import logging
|
|
from operator import itemgetter
|
|
|
|
from wlauto import Instrument, File, Parameter
|
|
from wlauto.exceptions import InstrumentError
|
|
|
|
UNIT_MAP = {
|
|
'curr': 'Amps',
|
|
'volt': 'Volts',
|
|
'cenr': 'Joules',
|
|
'pow': 'Watts',
|
|
}
|
|
|
|
JUNO_MAX_INT = 0x7fffffffffffffff
|
|
|
|
|
|
class JunoEnergy(Instrument):
|
|
|
|
name = 'juno_energy'
|
|
description = """
|
|
Collects internal energy meter measurements from Juno development board.
|
|
|
|
This instrument was created because (at the time of creation) Juno's energy
|
|
meter measurements aren't exposed through HWMON or similar standardized mechanism,
|
|
necessitating a dedicated instrument to access them.
|
|
|
|
This instrument, and the ``readenergy`` executable it relies on are very much tied
|
|
to the Juno platform and are not expected to work on other boards.
|
|
|
|
"""
|
|
|
|
parameters = [
|
|
Parameter('period', kind=float, default=0.1,
|
|
description="""
|
|
Specifies the time, in Seconds, between polling energy counters.
|
|
"""),
|
|
Parameter('strict', kind=bool, default=True,
|
|
description="""
|
|
Setting this to ``False`` will omit the check that the ``device`` is
|
|
``"juno"``. This is useful if the underlying board is actually Juno
|
|
but WA connects via a different interface (e.g. ``generic_linux``).
|
|
"""),
|
|
]
|
|
|
|
def on_run_init(self, context):
|
|
local_file = context.resolver.get(File(self, 'readenergy'))
|
|
self.device.killall('readenergy', as_root=True)
|
|
self.readenergy = self.device.install(local_file)
|
|
|
|
def setup(self, context):
|
|
self.host_output_file = os.path.join(context.output_directory, 'energy.csv')
|
|
self.device_output_file = self.device.path.join(self.device.working_directory, 'energy.csv')
|
|
self.command = '{} -o {}'.format(self.readenergy, self.device_output_file)
|
|
self.device.killall('readenergy', as_root=True)
|
|
|
|
def start(self, context):
|
|
self.device.kick_off(self.command)
|
|
|
|
def stop(self, context):
|
|
self.device.killall('readenergy', signal='TERM', as_root=True)
|
|
|
|
def update_result(self, context):
|
|
self.device.pull_file(self.device_output_file, self.host_output_file)
|
|
context.add_artifact('junoenergy', self.host_output_file, 'data')
|
|
|
|
with open(self.host_output_file) as fh:
|
|
reader = csv.reader(fh)
|
|
headers = reader.next()
|
|
columns = zip(*reader)
|
|
for header, data in zip(headers, columns):
|
|
data = map(float, data)
|
|
if header.endswith('cenr'):
|
|
value = data[-1] - data[0]
|
|
if value < 0: # counter wrapped
|
|
value = JUNO_MAX_INT + value
|
|
else: # not cumulative energy
|
|
value = sum(data) / len(data)
|
|
context.add_metric(header, value, UNIT_MAP[header.split('_')[-1]])
|
|
|
|
def teardown(self, conetext):
|
|
self.device.delete_file(self.device_output_file)
|
|
|
|
def validate(self):
|
|
if self.strict:
|
|
if self.device.name.lower() != 'juno':
|
|
message = 'juno_energy instrument is only supported on juno devices; found {}'
|
|
raise InstrumentError(message.format(self.device.name))
|
|
|