#!/usr/bin/env python3

from time import sleep
import os
import operator


def pid_to_name(pid):
    try:
        with open('/proc/' + pid + '/status') as f:
            for line in f:
                return line[:-1].split('\t')[1]
    except FileNotFoundError:
        return ''

while True:
    oom_list = []
    for i in os.listdir('/proc'):
        if i.isdigit() is not True:
            continue
        try:
            with open('/proc/' + i + '/oom_score') as file:
                oom_score = int(file.readlines()[0][:-1])
        except Exception:
            print('exception oom!')
        oom_list.append((i, oom_score))

    oom_list_sorted = sorted(oom_list, key=operator.itemgetter(1), reverse=True)

    print("\033c")
    print('oom_score    Pid  Name')
    for i in oom_list_sorted[:10]:
        oom_score = i[1]
        pid = i[0]
        if int(oom_score) > 0:
            print(
                '{}{}  {}'.format(
                    str(oom_score).rjust(9), 
                    str(pid).rjust(7), 
                    str(pid_to_name(pid)).ljust(16)
                    )
                )
    sleep(1)