33 lines
914 B
Python
33 lines
914 B
Python
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import time
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import os
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RAPL_PATH = "/sys/class/powercap/intel-rapl:0/energy_uj"
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def read_energy():
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try:
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with open(RAPL_PATH, "r") as f:
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return int(f.read().strip())
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except FileNotFoundError:
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print(f"Error: {RAPL_PATH} not found.")
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exit(1)
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def calculate_power(interval=1.0):
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print(f"Monitoring CPU package power every {interval} second(s)... (Ctrl+C to stop)")
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while True:
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energy_before = read_energy()
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time.sleep(interval)
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energy_after = read_energy()
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delta_uj = energy_after - energy_before
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power_watts = (delta_uj / 1_000_000) / interval
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print(f"Power Usage: {power_watts:.2f} Watts")
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if __name__ == "__main__":
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if os.geteuid() != 0:
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print("Please run this script as root.")
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exit(1)
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try:
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calculate_power(interval=1.0)
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except KeyboardInterrupt:
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print("\nStopped.")
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