This program uses psutil to track a job
import atexit
import math
import psutil
import time
cmd = './fib.py' #the script which we will track memory and cpu. It is a simple fibonace series printing program here without any print statement. It can be anything
child_process = psutil.Popen(cmd, shell=True)
def kill_job():
if child_process.is_running():
child_process.kill()
#child_process.kill
def convert_size(size_bytes):
if size_bytes == 0:
return "0B"
size_name = ("B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB")
i = int(math.floor(math.log(size_bytes, 1024)))
p = math.pow(1024, i)
s = round(size_bytes / p, 2)
return "%s %s" % (s, size_name[i])
atexit.register(kill_job)
print('PID=', child_process.pid)
counter = 0
max_memory = 0
while 1:
child_process.poll()
if child_process.is_running():
cpu_percentage = child_process.cpu_percent(interval=1)
cpu_times = child_process.cpu_times()
memory = child_process.memory_full_info().rss #RES stands for the resident size, which is an accurate representation of how much actual physical memory a process is consuming.
print('cpu_percentage', cpu_percentage)
print('cpu_times', cpu_times)
max_memory = max(memory, max_memory)
print('memory', memory)
else:
print('not running')
break
counter += 1
if counter > 5:
kill_job()
time.sleep(1)
print(max_memory)
