94 lines
2.6 KiB
Python
94 lines
2.6 KiB
Python
#!/usr/bin/env python3
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# Description: Displays top system processes with color.
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# Usage: python3 color-top.py
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# Author: Justin Oros
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# Source: https://github.com/JustinOros
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import os
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import time
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import psutil
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import sys
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import select
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import socket
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import argparse
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import tty
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import termios
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GREEN = "\033[32m"
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YELLOW = "\033[33m"
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ORANGE = "\033[38;5;214m"
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RED = "\033[31m"
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RESET = "\033[0m"
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def clear_screen():
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os.system('cls' if os.name == 'nt' else 'clear')
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def get_top_processes(limit):
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# Prime cpu_percent readings
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for proc in psutil.process_iter(['pid']):
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try:
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proc.cpu_percent(interval=None)
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except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
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continue
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time.sleep(0.1)
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processes = []
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for proc in psutil.process_iter(['cpu_percent', 'name', 'username']):
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try:
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cpu = proc.info['cpu_percent']
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if cpu is not None:
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processes.append((cpu, proc.info['name'], proc.info['username']))
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except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
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continue
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processes.sort(reverse=True, key=lambda p: p[0])
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return processes[:limit]
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def colorize(cpu, name, user):
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color = GREEN if cpu <= 25 else YELLOW if cpu <= 50 else ORANGE if cpu <= 75 else RED
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cpu_str = f"{cpu:6.2f}%"
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return f"{color}{cpu_str} {name[:25]:<25} {user[:15]:<15}{RESET}"
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def print_processes(limit):
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clear_screen()
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top_processes = get_top_processes(limit)
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print("CPU % Process Name User")
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print("----------------------------------------------")
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for (cpu, name, user) in top_processes:
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print(colorize(cpu, name, user))
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print("\nPress 'q' to quit.")
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def wait_for_keypress(timeout=1.0):
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fd = sys.stdin.fileno()
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old_settings = termios.tcgetattr(fd)
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try:
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tty.setcbreak(fd)
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if select.select([sys.stdin], [], [], timeout)[0]:
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return sys.stdin.read(1)
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finally:
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termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
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return None
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def main():
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parser = argparse.ArgumentParser(description="Monitor system processes by CPU usage.")
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parser.add_argument("-n", "--number", type=int, default=10, help="Number of processes to monitor (default is 10).")
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args = parser.parse_args()
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limit = args.number
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try:
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while True:
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print_processes(limit)
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key = wait_for_keypress(timeout=1.0)
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if key and key.lower() == 'q':
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print("Exiting...")
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break
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except KeyboardInterrupt:
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print("\nProgram interrupted. Exiting...")
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if __name__ == "__main__":
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main()
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