Machine Benchmarks

endurance.py

"""Endurance test the battery while watching video.

Videos to use (first two matter for OLED displays)...
- [white background video](https://www.youtube.com/watch?v=J3pF2jkQ4vc),
- [black background video](https://www.youtube.com/watch?v=XIMLoLxmTDw), and
- [nature video](https://www.youtube.com/watch?v=k-ZXEDMEaew)
"""

import logging
import time

import psutil


logging.basicConfig(
    filename=f"endurance-{int(time.time())}.log",
    format='%(asctime)s : %(levelname)s : %(message)s',
    encoding="utf-8",
    level=logging.DEBUG
)


def main(sleep_interval_seconds: int = 60):
    t0 = time.monotonic()
    while True:
        battery_percent = f"{psutil.sensors_battery().percent:5.2f}%"
        loop_time = f"{(time.monotonic() - t0):10.1f}s"
        logging.info(
            "Battery Percent: %s\t\tLoop Time: %s",
            battery_percent,
            loop_time,
        )
        time.sleep(sleep_interval_seconds)


if __name__ == "__main__":
    main()

general_benchmark.sh

#!/usr/bin/env bash

set +e
SECONDS=0
now=$(date --iso-8601=seconds)
LOG="general_benchmark-${now}.log"

function log_time() {
  echo "${SECONDS} : ${1}" | tee -a $LOG
}

log_time "free (before test)..."
log_time "$(free)"
log_time "========================================"

log_time "Creating tmpfs..."
sudo mkdir -p /mnt/ram_benchmark  # memory
sudo mkdir -p /tmp/ssd_benchmark  # disk
sudo mount -t tmpfs -o size=10G /mnt/ram_benchmark /mnt/ram_benchmark

log_time "tmpfs stats (df -h -t tmpfs)..."
log_time "$(df -h -t tmpfs)"
log_time "========================================"

log_time "Filling tmpfs..."  | tee -a
log_time "$(sudo dd if=/dev/urandom of=/mnt/ram_benchmark/test bs=1M; sync)"
log_time "Finished filling tmpfs..."
log_time "========================================"
ram_time=$SECONDS

log_time "free (after filling tmpfs)..."  | tee -a
log_time "$(free)"
log_time "========================================"

log_time "Copying random file to /tmp/ssd_benchmark/test"
sudo cp /mnt/ram_benchmark/test /tmp/ssd_benchmark
log_time "Finished copying..."
log_time "========================================"
ssd_time=$SECONDS

log_time "Comparing sha256 sums..."  | tee -a
log_time "$(sha256sum /mnt/ram_benchmark/test /tmp/ssd_benchmark/test)"
log_time "Finished calculating sha256 sums"
log_time "========================================"
cpu_time=$SECONDS

log_time "Cleaning up..."
sudo umount /mnt/ram_benchmark
sudo rm -rf /mnt/ram_benchmark
sudo rm -rf /tmp/ssd_benchmark
log_time "========================================"

log_time "Duration of the test: ${SECONDS} seconds"
log_time "Stats..."
log_time "hostname,date,ram_time,ssd_time,cpu_time"
log_time "$(hostname),${now},${ram_time},${ssd_time},${cpu_time}"