CPU burn in linux/virtual environment.

Below you can find python script to burn cpu (for expamle, when testing alerting) in virtual (and physical) environment. Script is scaling (automatically) for number of CPU presented for the OS

burn_cpu.py

import multiprocessing
import time

def burn_cpu(duration):
    end_time = time.time() + duration
    while time.time() < end_time:
        pass

if __name__ == "__main__":
    num_threads = multiprocessing.cpu_count()  # Get the number of CPU cores
    duration = 60  # Burn CPU for 60 seconds

    print(f"Burning CPU with {num_threads} threads for {duration} seconds.")

    processes = []

    for _ in range(num_threads):
        process = multiprocessing.Process(target=burn_cpu, args=(duration,))
        processes.append(process)
        process.start()

    for process in processes:
        process.join()

    print("CPU burn completed.")

To run script use the following command: python3 burn_cpu.py

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