Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Raspberry Pi CPU temperature and throttling test script
#!/bin/bash
# Raspberry Pi stress CPU temperature measurement script.
# Variables.
test_run=1
test_results_file="/home/pi/cpu_temp_$test_run.log"
stress_length="10m"
# Verify stress-ng is installed.
if ! [ -x "$(command -v stress-ng)" ]; then
printf "Error: stress-ng not installed.\n"
printf "To install: sudo apt install -y stress-ng\n" >&2
exit 1
fi
printf "Logging temperature and throttling data to: $test_results_file\n"
# Start logging temperature data in the background.
while /bin/true; do
# Print the date (e.g. "Wed 13 Nov 18:24:45 GMT 2019") and a tab.
date | tr '\n' '\t' >> $test_results_file;
# Print the temperature (e.g. "39.0") and a tab.
vcgencmd measure_temp | tr -d "temp=" | tr -d "'C" | tr '\n' '\t' >> $test_results_file;
# Print the throttle status (e.g. "0x0") and a tab.
vcgencmd get_throttled | tr -d "throttled=" | tr '\n' '\t' >> $test_results_file;
# Print the current CPU frequency.
vcgencmd measure_clock arm | sed 's/^.*=//' >> $test_results_file;
sleep 5;
done &
# Store the logging pid.
PROC_ID=$!
# After 5 minutes, run stress.
printf "Waiting 5 minutes for stable idle temperature...\n"
sleep 300
printf "Beginning $stress_length stress test...\n"
stress-ng -c 4 --timeout $stress_length
# Keep logging for 5 more minutes.
printf "Waiting 5 minutes to return to idle temperature...\n"
sleep 300
# Kill the logging pid.
kill $PROC_ID
printf "Test complete.\n"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.