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Raspberry Pi CPU temperature and throttling test script
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| #!/bin/bash | |
| # Raspberry Pi stress CPU temperature measurement script. | |
| # | |
| # Download this script (e.g. with wget) and give it execute permissions (chmod +x). | |
| # Then run it with ./pi-cpu-stress.sh | |
| # | |
| # NOTE: In recent years, I've switched to using s-tui. See: | |
| # https://github.com/amanusk/s-tui?tab=readme-ov-file#options | |
| # Variables. | |
| test_run=1 | |
| test_results_file="${HOME}/cpu_temp_$test_run.csv" | |
| 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: $test_results_file\n" | |
| # Start logging temperature data in the background. | |
| while /bin/true; do | |
| line=$(date | tr '\n' '\t') | |
| # For Raspberry Pi. | |
| line+=$(vcgencmd measure_temp | tr -d "temp=" | tr -d "'C" | tr '\n' '\t') | |
| line+=$(vcgencmd get_throttled | tr -d "throttled=" | tr '\n' '\t') | |
| line+=$(vcgencmd measure_clock arm | sed 's/^.*=//') | |
| # For Intel/AMD/Ampere (might need tweaking). | |
| # line+=$(sensors -A | sed -n '2{s/°.*//; s/[^+-]*//; p; q}' | tr '\n' '\t') | |
| # line+=$(echo 'Not_Measured' | tr '\n' '\t') | |
| # line+=$(awk '/MHz/{ temp+=$4; n++ } END{ printf("%f\n", temp/n) }' /proc/cpuinfo | tr '\n' '\t') | |
| echo $line | |
| echo $line >> $test_results_file | |
| sleep 5 | |
| done & | |
| # Store the logging pid. | |
| PROC_ID=$! | |
| # Stop the logging loop if script is interrupted or when it ends. | |
| trap "kill $PROC_ID" EXIT | |
| # After 5 minutes, run stress. | |
| printf "Waiting 5 minutes for stable idle temperature...\n" | |
| printf "Date °C Status CPU Clock\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 | |
| printf "Test complete.\n" |
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