├── .codecov.yml ├── .flake8 ├── .github └── workflows │ └── ci.yml ├── .gitignore ├── LICENSE ├── Makefile ├── README.md ├── pyproject.toml ├── setup.cfg ├── stressberry ├── __about__.py ├── __init__.py ├── cli │ ├── __init__.py │ ├── helpers.py │ ├── plot.py │ └── run.py └── main.py ├── test ├── test_cli.py └── test_stressberry.py └── tox.ini /.codecov.yml: -------------------------------------------------------------------------------- 1 | comment: no 2 | -------------------------------------------------------------------------------- /.flake8: -------------------------------------------------------------------------------- 1 | [flake8] 2 | ignore = E203, E266, E501, W503 3 | max-line-length = 80 4 | max-complexity = 18 5 | select = B,C,E,F,W,T4,B9 6 | -------------------------------------------------------------------------------- /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | name: ci 2 | 3 | on: 4 | push: 5 | branches: 6 | - main 7 | pull_request: 8 | branches: 9 | - main 10 | 11 | jobs: 12 | lint: 13 | runs-on: ubuntu-latest 14 | steps: 15 | - uses: actions/setup-python@v2 16 | with: 17 | python-version: "3.x" 18 | - uses: actions/checkout@v2 19 | - name: Lint with flake8 20 | run: | 21 | pip install flake8 22 | flake8 . 23 | - name: Lint with black 24 | run: | 25 | pip install black 26 | black --check . 27 | 28 | build: 29 | runs-on: ubuntu-latest 30 | strategy: 31 | matrix: 32 | python-version: [3.7, 3.8, 3.9] 33 | steps: 34 | - uses: actions/setup-python@v2 35 | with: 36 | python-version: ${{ matrix.python-version }} 37 | - uses: actions/checkout@v2 38 | - name: Install system dependencies 39 | run: sudo apt-get install -y stress 40 | - name: Test with tox 41 | run: | 42 | pip install tox 43 | tox 44 | - uses: codecov/codecov-action@v1 45 | if: ${{ matrix.python-version == '3.8' }} 46 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.pyc 2 | *.swp 3 | *.prof 4 | MANIFEST 5 | dist/ 6 | build/ 7 | .coverage 8 | .cache/ 9 | *.egg-info/ 10 | *.dat 11 | *.png 12 | .pytest_cache/ 13 | .vscode/ 14 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | VERSION=$(shell python3 -c "from configparser import ConfigParser; p = ConfigParser(); p.read('setup.cfg'); print(p['metadata']['version'])") 2 | 3 | default: 4 | @echo "\"make publish\"?" 5 | 6 | tag: 7 | # Make sure we're on the main branch 8 | @if [ "$(shell git rev-parse --abbrev-ref HEAD)" != "main" ]; then exit 1; fi 9 | # @echo "Tagging v$(VERSION)..." 10 | # git tag v$(VERSION) 11 | # git push --tags 12 | curl -H "Authorization: token `cat $(HOME)/.github-access-token`" -d '{"tag_name": "v$(VERSION)"}' https://api.github.com/repos/nschloe/stressberry/releases 13 | 14 | upload: 15 | @if [ "$(shell git rev-parse --abbrev-ref HEAD)" != "main" ]; then exit 1; fi 16 | rm -f dist/* 17 | # python3 setup.py sdist bdist_wheel 18 | # https://stackoverflow.com/a/58756491/353337 19 | python3 -m build --sdist --wheel . 20 | twine upload dist/* 21 | 22 | publish: tag upload 23 | 24 | clean: 25 | @find . | grep -E "(__pycache__|\.pyc|\.pyo$\)" | xargs rm -rf 26 | @rm -rf *.egg-info/ build/ dist/ 27 | 28 | format: 29 | isort . 30 | black . 31 | blacken-docs README.md 32 | 33 | lint: 34 | black --check . 35 | flake8 . 36 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 |

2 | stressberry 3 |

Stress tests and temperature plots for the Raspberry Pi

4 |

5 | 6 | [![PyPi Version](https://img.shields.io/pypi/v/stressberry.svg?style=flat-square)](https://pypi.org/project/stressberry) 7 | [![PyPI pyversions](https://img.shields.io/pypi/pyversions/stressberry.svg?style=flat-square)](https://pypi.org/pypi/stressberry/) 8 | [![GitHub stars](https://img.shields.io/github/stars/nschloe/stressberry.svg?style=flat-square&logo=github&label=Stars&logoColor=white)](https://github.com/nschloe/stressberry) 9 | [![PyPi downloads](https://img.shields.io/pypi/dm/stressberry.svg?style=flat-square)](https://pypistats.org/packages/stressberry) 10 | 11 | [![gh-actions](https://img.shields.io/github/workflow/status/nschloe/stressberry/ci?style=flat-square)](https://github.com/nschloe/stressberry/actions?query=workflow%3Aci) 12 | [![codecov](https://img.shields.io/codecov/c/github/nschloe/stressberry.svg?style=flat-square)](https://codecov.io/gh/nschloe/stressberry) 13 | [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg?style=flat-square)](https://github.com/psf/black) 14 | 15 | There are a million ways to cool down your Raspberry Pi: Small heat sinks, specific 16 | cases, and some [extreme DIY solutions](https://youtu.be/WfQMLInuwws). stressberry is a 17 | package for testing the core temperature under different loads, and it produces nice 18 | plots which can easily be compared. 19 | 20 | ### Raspberry Pi 4B 21 | | 22 | :--------------------------------------:|:----------------------:| 23 | active | passive 24 | 25 | | | 26 | :--------------------------------------:|:----------------------:|:------:| 27 | custom case with fans (@flyingferret, [#21](https://github.com/nschloe/stressberry/issues/21)) | [KKSB case](https://kksb-cases.com/products/kksb-raspberry-pi-4-case-aluminium) (@JohBod, [#31](https://github.com/nschloe/stressberry/issues/31)) | [Argon One case](https://www.argon40.com/argon1/argon-one-pi4.html) (@jholloway, [#37](https://github.com/nschloe/stressberry/issues/37)) 28 | | | 29 | [hex wrench case](https://www.amazon.ca/Aluminum-Model-Raspberry-Wrench-Enclosure/dp/B07W6FT1DD?th=1) (@patrickpoirier51, [#45](https://github.com/nschloe/stressberry/issues/45)) | [CooliPi](https://www.coolipi.com/) (@CooliPi, [#47](https://github.com/nschloe/stressberry/issues/47), [#48](https://github.com/nschloe/stressberry/issues/48)) | [low-profile ice tower case](https://www.aliexpress.com/i/4000288119233.html) (@leonhess, [#54](https://github.com/nschloe/stressberry/issues/54)) 30 | | | 31 | [Flirc case](https://flirc.tv/more/raspberry-pi-4-case) (@RichardKav, [#73](https://github.com/nschloe/stressberry/issues/73)) | [Armor Case](https://www.amazon.com/Geekworm-Raspberry-Computer-Aluminum-Compatible/dp/B07VD568FB) | 32 | 33 | 34 | ### Raspberry Pi 3B+ 35 | 36 | 37 | #### FLIRC case 38 | 39 | 40 | 41 | The famous [FLIRC case](https://flirc.tv/more/raspberry-pi-case). 42 | Thanks to @RichardKav for the measurements! 43 | 44 | ### Raspberry Pi 3B 45 | 46 | 47 | | | 48 | :-------------------:|:------------------:|:----------:| 49 | No fans, heat sinks, or case. | Your average acrylic case from eBay. | [FastTech case](https://www.fasttech.com/p/5299000), full-body aluminum alloy with heat pads for CPU and RAM. 50 | 51 | ### How to 52 | 53 | To run stressberry on your computer, simply install it with 54 | ```bash 55 | [sudo] apt install stress 56 | python3 -m pip install stressberry 57 | ``` 58 | Users of [Arch Linux ARM](https://archlinuxarm.org/) can install from the official repos 59 | ``` 60 | [sudo] pacman -S stressberry 61 | ``` 62 | and run it with 63 | ``` 64 | stressberry-run out.dat 65 | stressberry-plot out.dat -o out.png 66 | ``` 67 | (Use `MPLBACKEND=Agg stressberry-plot out.dat -o out.png` if you're running the script 68 | on the Raspberry Pi itself.) 69 | 70 | If it your computer can't find the stressberry tools after installation, 71 | you might have to add the directory `$HOME/.local/bin` to your path: 72 | ``` 73 | export PATH=$PATH:/home/pi/.local/bin 74 | ``` 75 | (You can also put this line in your `.bashrc`.) 76 | 77 | The run lets the CPU idle for a bit, then stresses it with maximum load for 5 minutes, 78 | and lets it cool down afterwards. The entire process takes 10 minutes. The resulting 79 | data is displayed to a screen or, if specified, written to a PNG file. 80 | 81 | If you'd like to submit your own data for display here, feel free to [open an 82 | issue](https://github.com/nschloe/stressberry/issues) and include the data file, a 83 | photograph of your setup, and perhaps some further information. 84 | 85 | 86 | ### Testing 87 | 88 | To run the tests, just check out this repository and type 89 | ``` 90 | pytest 91 | ``` 92 | 93 | ### License 94 | This software is published under the [GPLv3 license](https://www.gnu.org/licenses/gpl-3.0.en.html). 95 | -------------------------------------------------------------------------------- /pyproject.toml: -------------------------------------------------------------------------------- 1 | [build-system] 2 | requires = ["setuptools>=42", "wheel"] 3 | build-backend = "setuptools.build_meta" 4 | -------------------------------------------------------------------------------- /setup.cfg: -------------------------------------------------------------------------------- 1 | [metadata] 2 | name = stressberry 3 | version = 0.3.3 4 | author = Nico Schlömer 5 | author_email = nico.schloemer@gmail.com 6 | description = Stress tests for the Raspberry Pi 7 | url = https://github.com/nschloe/stressberry 8 | project_urls = 9 | Code=https://github.com/nschloe/stressberry 10 | Issues=https://github.com/nschloe/stressberry/issues 11 | Funding=https://github.com/sponsors/nschloe 12 | long_description = file: README.md 13 | long_description_content_type = text/markdown 14 | license = GPL-3.0-or-later 15 | classifiers = 16 | Development Status :: 4 - Beta 17 | License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+) 18 | Operating System :: OS Independent 19 | Programming Language :: Python 20 | Programming Language :: Python :: 3 21 | Programming Language :: Python :: 3.7 22 | Programming Language :: Python :: 3.8 23 | Programming Language :: Python :: 3.9 24 | Topic :: Utilities 25 | 26 | [options] 27 | packages = find: 28 | install_requires = 29 | importlib_metadata;python_version<"3.8" 30 | matplotlib 31 | matplotx 32 | pyyaml 33 | python_requires = >=3.7 34 | 35 | [options.entry_points] 36 | console_scripts = 37 | stressberry-run = stressberry.cli:run 38 | stressberry-plot = stressberry.cli:plot 39 | -------------------------------------------------------------------------------- /stressberry/__about__.py: -------------------------------------------------------------------------------- 1 | try: 2 | # Python 3.8 3 | from importlib import metadata 4 | except ImportError: 5 | import importlib_metadata as metadata 6 | 7 | try: 8 | __version__ = metadata.version("stressberry") 9 | except Exception: 10 | __version__ = "unknown" 11 | -------------------------------------------------------------------------------- /stressberry/__init__.py: -------------------------------------------------------------------------------- 1 | from . import cli 2 | from .__about__ import __version__ 3 | from .main import stress_cpu 4 | 5 | __all__ = ["__version__", "cli", "stress_cpu"] 6 | -------------------------------------------------------------------------------- /stressberry/cli/__init__.py: -------------------------------------------------------------------------------- 1 | from .plot import plot 2 | from .run import run 3 | 4 | __all__ = ["plot", "run"] 5 | -------------------------------------------------------------------------------- /stressberry/cli/helpers.py: -------------------------------------------------------------------------------- 1 | import sys 2 | 3 | from ..__about__ import __version__ 4 | 5 | 6 | def _get_version_text(): 7 | return "\n".join( 8 | [ 9 | "stressberry {} [Python {}.{}.{}]".format( 10 | __version__, 11 | sys.version_info.major, 12 | sys.version_info.minor, 13 | sys.version_info.micro, 14 | ), 15 | "Copyright (c) 2017-2020 Nico Schlömer ", 16 | ] 17 | ) 18 | -------------------------------------------------------------------------------- /stressberry/cli/plot.py: -------------------------------------------------------------------------------- 1 | import argparse 2 | 3 | import yaml 4 | 5 | from .helpers import _get_version_text 6 | 7 | 8 | def plot(argv=None): 9 | import matplotx 10 | import matplotlib.pyplot as plt 11 | 12 | plt.style.use(matplotx.styles.dufte) 13 | 14 | parser = _get_parser_plot() 15 | args = parser.parse_args(argv) 16 | 17 | data = [yaml.load(f, Loader=yaml.SafeLoader) for f in args.infiles] 18 | 19 | # actually plot it 20 | fig = plt.figure() 21 | ax1 = fig.add_subplot(1, 1, 1) 22 | for d in data: 23 | temperature_data = d["temperature"] 24 | if args.delta_t: 25 | temperature_data = [] 26 | zip_object = zip(d["temperature"], d["ambient"]) 27 | for d["temperature"], d["ambient"] in zip_object: 28 | temperature_data.append(d["temperature"] - d["ambient"]) 29 | 30 | plt.plot(d["time"], temperature_data, label=d["name"]) 31 | 32 | matplotx.line_labels() 33 | 34 | if args.delta_t: 35 | plot_yaxis_label = "Δ temperature [°C over ambient]" 36 | else: 37 | plot_yaxis_label = "temperature [°C]" 38 | plt.xlabel("time [s]") 39 | plt.ylabel(plot_yaxis_label) 40 | 41 | if args.temp_lims: 42 | ax1.set_ylim(*args.temp_lims) 43 | 44 | # Only plot frequencies when using a single input file 45 | if len(data) == 1 and args.frequency: 46 | ax2 = plt.twinx() 47 | ax2.set_ylabel("core frequency (MHz)") 48 | if args.freq_lims: 49 | ax2.set_ylim(*args.freq_lims) 50 | try: 51 | for d in data: 52 | ax2.plot( 53 | d["time"], 54 | d["cpu frequency"], 55 | label=d["name"], 56 | color="C1", 57 | alpha=0.9, 58 | ) 59 | ax1.set_zorder(ax2.get_zorder() + 1) # put ax1 plot in front of ax2 60 | ax1.patch.set_visible(False) # hide the 'canvas' 61 | except KeyError(): 62 | print("Source data does not contain CPU frequency data.") 63 | 64 | if args.outfile is not None: 65 | plt.savefig( 66 | args.outfile, 67 | transparent=args.transparent, 68 | bbox_inches="tight", 69 | dpi=args.dpi, 70 | ) 71 | else: 72 | plt.show() 73 | return 74 | 75 | 76 | def _get_parser_plot(): 77 | parser = argparse.ArgumentParser(description="Plot stress test data.") 78 | parser.add_argument( 79 | "--version", "-v", action="version", version=_get_version_text() 80 | ) 81 | parser.add_argument( 82 | "infiles", 83 | nargs="+", 84 | type=argparse.FileType("r"), 85 | help="input YAML file(s) (default: stdin)", 86 | ) 87 | parser.add_argument( 88 | "-o", 89 | "--outfile", 90 | help=( 91 | "if specified, the plot is written to this file " 92 | "(default: show on screen)" 93 | ), 94 | ) 95 | parser.add_argument( 96 | "-t", 97 | "--temp-lims", 98 | type=float, 99 | nargs=2, 100 | default=None, 101 | help="limits for the temperature (default: data limits)", 102 | ) 103 | parser.add_argument( 104 | "-d", 105 | "--dpi", 106 | type=int, 107 | default=None, 108 | help="image resolution in dots per inch when written to file", 109 | ) 110 | parser.add_argument( 111 | "-f", 112 | "--frequency", 113 | help="plot CPU core frequency (single input files only)", 114 | action="store_true", 115 | ) 116 | parser.add_argument( 117 | "-l", 118 | "--freq-lims", 119 | type=float, 120 | nargs=2, 121 | default=None, 122 | help="limits for the frequency scale (default: data limits)", 123 | ) 124 | parser.add_argument( 125 | "--not-transparent", 126 | dest="transparent", 127 | help="do not make images transparent", 128 | action="store_false", 129 | default=True, 130 | ) 131 | parser.add_argument( 132 | "--delta-t", 133 | action="store_true", 134 | default=False, 135 | help="Use Delta-T (core - ambient) temperature instead of CPU core temperature", 136 | ) 137 | return parser 138 | -------------------------------------------------------------------------------- /stressberry/cli/run.py: -------------------------------------------------------------------------------- 1 | import argparse 2 | import datetime 3 | import threading 4 | import time 5 | 6 | import yaml 7 | 8 | from ..__about__ import __version__ 9 | from ..main import ( 10 | cooldown, 11 | measure_ambient_temperature, 12 | measure_core_frequency, 13 | measure_temp, 14 | test, 15 | ) 16 | from .helpers import _get_version_text 17 | 18 | 19 | def _get_parser_run(): 20 | parser = argparse.ArgumentParser( 21 | description="Run stress test for the Raspberry Pi." 22 | ) 23 | parser.add_argument( 24 | "--version", "-v", action="version", version=_get_version_text() 25 | ) 26 | parser.add_argument( 27 | "-n", 28 | "--name", 29 | type=str, 30 | default="stressberry data", 31 | help="name the data set (default: 'stressberry data')", 32 | ) 33 | parser.add_argument( 34 | "-t", 35 | "--temperature-file", 36 | type=str, 37 | default=None, 38 | help="temperature file e.g /sys/class/thermal/thermal_zone0/temp (default: vcgencmd)", 39 | ) 40 | parser.add_argument( 41 | "-d", 42 | "--duration", 43 | type=int, 44 | default=300, 45 | help="stress test duration in seconds (default: 300)", 46 | ) 47 | parser.add_argument( 48 | "-i", 49 | "--idle", 50 | type=int, 51 | default=150, 52 | help="idle time in seconds at start and end of stress test (default: 150)", 53 | ) 54 | parser.add_argument( 55 | "--cooldown", 56 | type=int, 57 | default=60, 58 | help="poll interval seconds to check for stable temperature (default: 60)", 59 | ) 60 | parser.add_argument( 61 | "-c", 62 | "--cores", 63 | type=int, 64 | default=None, 65 | help="number of CPU cores to stress (default: all)", 66 | ) 67 | parser.add_argument( 68 | "-f", 69 | "--frequency-file", 70 | type=str, 71 | default=None, 72 | help="CPU core frequency file e.g. /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq (default: vcgencmd)", 73 | ) 74 | parser.add_argument( 75 | "-a", 76 | "--ambient", 77 | type=str, 78 | nargs=2, 79 | default=None, 80 | help="measure ambient temperature. Sensor Type [11|22|2302] e.g. 2302 26", 81 | ) 82 | parser.add_argument("outfile", type=argparse.FileType("w"), help="output data file") 83 | return parser 84 | 85 | 86 | def run(argv=None): 87 | parser = _get_parser_run() 88 | args = parser.parse_args(argv) 89 | 90 | # Cool down first 91 | print("Awaiting stable baseline temperature...") 92 | cooldown(interval=args.cooldown, filename=args.temperature_file) 93 | 94 | # Start the stress test in another thread 95 | t = threading.Thread( 96 | target=lambda: test(args.duration, args.idle, args.cores), args=() 97 | ) 98 | t.start() 99 | 100 | times = [] 101 | temps = [] 102 | freqs = [] 103 | ambient = [] 104 | while t.is_alive(): 105 | times.append(time.time()) 106 | temps.append(measure_temp(args.temperature_file)) 107 | freqs.append(measure_core_frequency(args.frequency_file)) 108 | if args.ambient: 109 | ambient_temperature = measure_ambient_temperature( 110 | sensor_type=args.ambient[0], pin=args.ambient[1] 111 | ) 112 | if ambient_temperature is None: 113 | # Reading the sensor can return None if it times out. 114 | # If never had a good result, probably configuration error 115 | # Else use last known value if available or worst case set to zero 116 | if not ambient: 117 | print( 118 | f"Could not read ambient temperature sensor {args.ambient[0]} " 119 | f"on pin {args.ambient[1]}" 120 | ) 121 | else: 122 | print( 123 | "WARN - Could not read ambient temperature, " 124 | "using last good value" 125 | ) 126 | ambient_temperature = next( 127 | (temp for temp in reversed(ambient) if temp is not None), 0 128 | ) 129 | ambient.append(ambient_temperature) 130 | delta_t = temps[-1] - ambient[-1] 131 | print( 132 | "Temperature (current | ambient | ΔT): " 133 | f"{temps[-1]:4.1f}°C | {ambient[-1]:4.1f}°C | {delta_t:4.1f}°C " 134 | f"- Frequency: {freqs[-1]:4.0f}MHz" 135 | ) 136 | else: 137 | print( 138 | f"Current temperature: {temps[-1]:4.1f}°C " 139 | f"- Frequency: {freqs[-1]:4.0f}MHz" 140 | ) 141 | # Choose the sample interval such that we have a respectable number of 142 | # data points 143 | t.join(2.0) 144 | 145 | # normalize times 146 | time0 = times[0] 147 | times = [tm - time0 for tm in times] 148 | 149 | args.outfile.write( 150 | f"# This file was created by stressberry v{__version__} " 151 | f"on {datetime.datetime.now()}\n" 152 | ) 153 | yaml.dump( 154 | { 155 | "name": args.name, 156 | "time": times, 157 | "temperature": temps, 158 | "cpu frequency": freqs, 159 | "ambient": ambient, 160 | }, 161 | args.outfile, 162 | ) 163 | -------------------------------------------------------------------------------- /stressberry/main.py: -------------------------------------------------------------------------------- 1 | import subprocess 2 | import time as tme 3 | from os import cpu_count 4 | 5 | 6 | def stress_cpu(num_cpus, time): 7 | subprocess.check_call(["stress", "--cpu", str(num_cpus), "--timeout", f"{time}s"]) 8 | return 9 | 10 | 11 | def cooldown(interval=60, filename=None): 12 | """Lets the CPU cool down until the temperature does not change anymore.""" 13 | prev_tmp = measure_temp(filename=filename) 14 | while True: 15 | tme.sleep(interval) 16 | tmp = measure_temp(filename=filename) 17 | print( 18 | f"Current temperature: {tmp:4.1f}°C - " 19 | f"Previous temperature: {prev_tmp:4.1f}°C" 20 | ) 21 | if abs(tmp - prev_tmp) < 0.2: 22 | break 23 | prev_tmp = tmp 24 | return tmp 25 | 26 | 27 | def measure_temp(filename=None): 28 | """Returns the core temperature in Celsius.""" 29 | if filename is not None: 30 | with open(filename) as f: 31 | temp = float(f.read()) / 1000 32 | else: 33 | # Using vcgencmd is specific to the raspberry pi 34 | out = subprocess.check_output(["vcgencmd", "measure_temp"]).decode("utf-8") 35 | temp = float(out.replace("temp=", "").replace("'C", "")) 36 | return temp 37 | 38 | 39 | def measure_core_frequency(filename=None): 40 | """Returns the CPU frequency in MHz""" 41 | if filename is not None: 42 | with open(filename) as f: 43 | frequency = float(f.read()) / 1000 44 | else: 45 | # Only vcgencmd measure_clock arm is accurate on Raspberry Pi. 46 | # Per: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=219358&start=25 47 | out = subprocess.check_output(["vcgencmd", "measure_clock arm"]).decode("utf-8") 48 | frequency = float(out.split("=")[1]) / 1000000 49 | return frequency 50 | 51 | 52 | def measure_ambient_temperature(sensor_type="2302", pin="23"): 53 | """Uses Adafruit temperature sensor to measure ambient temperature""" 54 | try: 55 | import Adafruit_DHT # Late import so that library is only needed if requested 56 | except ImportError as e: 57 | print("Install adafruit_dht python module: pip install Adafruit_DHT") 58 | raise e 59 | 60 | sensor_map = { 61 | "11": Adafruit_DHT.DHT11, 62 | "22": Adafruit_DHT.DHT22, 63 | "2302": Adafruit_DHT.AM2302, 64 | } 65 | try: 66 | sensor = sensor_map[sensor_type] 67 | except KeyError as e: 68 | print("Invalid ambient temperature sensor") 69 | raise e 70 | _, temperature = Adafruit_DHT.read_retry(sensor, pin) 71 | # Note that sometimes you won't get a reading and the results will be null (because 72 | # Linux can't guarantee the timing of calls to read the sensor). The read_retry 73 | # call will attempt to read the sensor 15 times with a 2 second delay. Care should 74 | # be taken when reading if on a time sensitive path Temperature is in °C but can 75 | # also be None 76 | return temperature 77 | 78 | 79 | def test(stress_duration, idle_duration, cores): 80 | """Run stress test for specified duration with specified idle times 81 | at the start and end of the test. 82 | """ 83 | if cores is None: 84 | cores = cpu_count() 85 | 86 | print(f"Preparing to stress [{cores}] CPU Cores for [{stress_duration}] seconds") 87 | print(f"Idling for {idle_duration} seconds...") 88 | tme.sleep(idle_duration) 89 | 90 | stress_cpu(num_cpus=cores, time=stress_duration) 91 | 92 | print(f"Idling for {idle_duration} seconds...") 93 | tme.sleep(idle_duration) 94 | -------------------------------------------------------------------------------- /test/test_cli.py: -------------------------------------------------------------------------------- 1 | import tempfile 2 | 3 | import stressberry 4 | 5 | 6 | def test_run(): 7 | temperature_file = tempfile.NamedTemporaryFile().name 8 | with open(temperature_file, "w") as f: 9 | f.write("12345") 10 | 11 | frequency_file = tempfile.NamedTemporaryFile().name 12 | with open(frequency_file, "w") as f: 13 | f.write("1500000") 14 | 15 | # TODO: Need to mock call to subprocess.check_output 16 | # outfile1 = tempfile.NamedTemporaryFile().name 17 | # stressberry.cli.run( 18 | # [outfile1, "-d", "12", "-i", "2", "--cooldown", "1"] 19 | # ) 20 | 21 | outfile = tempfile.NamedTemporaryFile().name 22 | stressberry.cli.run( 23 | [ 24 | outfile, 25 | "-t", 26 | temperature_file, 27 | "-f", 28 | frequency_file, 29 | "-d", 30 | "12", 31 | "-i", 32 | "2", 33 | "--cooldown", 34 | "1", 35 | ] 36 | ) 37 | 38 | stressberry.cli.plot( 39 | [outfile, "-f", "--temp-lims", "20", "90", "--freq-lims", "500", "2000"] 40 | ) 41 | plotoutfile = tempfile.NamedTemporaryFile().name 42 | stressberry.cli.plot( 43 | [ 44 | outfile, 45 | "-f", 46 | "--temp-lims", 47 | "20", 48 | "90", 49 | "--freq-lims", 50 | "500", 51 | "2000", 52 | "-o", 53 | plotoutfile, 54 | ] 55 | ) 56 | return 57 | -------------------------------------------------------------------------------- /test/test_stressberry.py: -------------------------------------------------------------------------------- 1 | import stressberry 2 | 3 | 4 | def test_stressberry(): 5 | stressberry.stress_cpu(1, 5) 6 | return 7 | -------------------------------------------------------------------------------- /tox.ini: -------------------------------------------------------------------------------- 1 | [tox] 2 | envlist = py3 3 | isolated_build = True 4 | 5 | [testenv] 6 | deps = 7 | pytest 8 | pytest-cov 9 | extras = all 10 | commands = 11 | pytest --cov {envsitepackagesdir}/stressberry --cov-report xml --cov-report term 12 | --------------------------------------------------------------------------------