Patrick Bellasi | 0f8ac68 | 2015-10-12 11:29:40 +0100 | [diff] [blame] | 1 | #!/usr/bin/python |
Patrick Bellasi | d95e98d | 2015-12-04 13:00:46 +0000 | [diff] [blame] | 2 | # |
| 3 | # SPDX-License-Identifier: Apache-2.0 |
| 4 | # |
| 5 | # Copyright (C) 2015, ARM Limited and contributors. |
| 6 | # |
| 7 | # Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 8 | # not use this file except in compliance with the License. |
| 9 | # You may obtain a copy of the License at |
| 10 | # |
| 11 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | # |
| 13 | # Unless required by applicable law or agreed to in writing, software |
| 14 | # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 15 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | # See the License for the specific language governing permissions and |
| 17 | # limitations under the License. |
| 18 | # |
Patrick Bellasi | 0f8ac68 | 2015-10-12 11:29:40 +0100 | [diff] [blame] | 19 | |
| 20 | import logging |
| 21 | import getopt |
| 22 | import sys |
| 23 | |
| 24 | # Sampler configuration |
| 25 | config = { |
| 26 | 'period' : 0, |
| 27 | 'samples' : 0, |
| 28 | } |
| 29 | |
| 30 | class OdroidSampler(object): |
| 31 | |
| 32 | sysfs_base = '/sys/devices/12c60000.i2c/i2c-4/i2c-dev/i2c-4/device' |
| 33 | sysfs = { |
| 34 | 'arm' : sysfs_base + '/4-0040', |
| 35 | 'kfc' : sysfs_base + '/4-0045', |
| 36 | } |
| 37 | power = { |
| 38 | 'arm' : sysfs['arm'] + '/sensor_W', |
| 39 | 'kfc' : sysfs['kfc'] + '/sensor_W', |
| 40 | } |
| 41 | |
| 42 | def __init__(self, samples, period): |
| 43 | self.energy_proxy = { |
| 44 | 'arm' : 0, |
| 45 | 'kfc' : 0, |
| 46 | } |
| 47 | self.samples = samples |
| 48 | self.period = period |
| 49 | |
| 50 | def sample(self, device): |
| 51 | f = open(self.power[device], 'r') |
| 52 | power = f.readline() |
| 53 | self.energy_proxy[device] += power |
| 54 | f.close() |
| 55 | |
| 56 | def averagePower(self, device): |
| 57 | self.energy_proxy[device] = 0 |
| 58 | for i in range(0, self.samples): |
| 59 | sample(self, device) |
| 60 | sleep(self.period / 1e6) |
| 61 | return self.energy_proxy[device] / self.samples |
| 62 | |
| 63 | |
| 64 | def parseOptions(): |
| 65 | global config |
| 66 | |
| 67 | logging.debug('Parsing options') |
| 68 | |
| 69 | try: |
| 70 | opts, args = getopt.getopt(sys.argv[1:], "p:s:", ["period=", "samples="]) |
| 71 | except getopt.GetoptError as err: |
| 72 | # print help information and exit: |
| 73 | print str(err) |
| 74 | usage() |
| 75 | sys.exit(2) |
| 76 | output = None |
| 77 | verbose = False |
| 78 | for o, a in opts: |
| 79 | if o == "-v": |
| 80 | verbose = True |
| 81 | elif o in ("-p", "--period"): |
| 82 | config['period'] = int(a) |
| 83 | elif o in ("-s", "--samples"): |
| 84 | config['samples'] = int(a) |
| 85 | else: |
| 86 | assert False, "unhandled option" |
| 87 | |
| 88 | logging.info('Sampler configured for {0:d} samples, evenry {1:.3f}ms'\ |
| 89 | .format(config['samples'], config['period']/1000)) |
| 90 | |
| 91 | def main(): |
| 92 | |
| 93 | parseOptions() |
| 94 | |
| 95 | sampler = OdroidSampler(config['samples'], config['period']) |
| 96 | |
| 97 | avg_power = amples.averagePower(config['device']) |
| 98 | logging.info('Average power: {0:f}'.format(avg_power)) |
| 99 | |
| 100 | logging.basicConfig( |
| 101 | format='%(asctime)-9s %(levelname)-8s: %(message)s', |
| 102 | level=logging.DEBUG, |
| 103 | datefmt='%I:%M:%S') |
| 104 | |
| 105 | if __name__ == "__main__": |
| 106 | main() |