destructor.py

#!/usr/bin/env python3

import os, random, time, sys, mmap, random

fds = []
mmaps = []

SIZE = (2**20)
def rand_str():
        return bytes(chr(random.randint(0, 127)) * SIZE, 'ascii')

n = random.randint(0, 1000)
while True:
        if len(fds) < 1000:
                fd = os.open('/mnt', os.O_RDWR | os.O_TMPFILE)
                fds.append(fd)
                os.write(fd, rand_str()) # 4MB

        if len(mmaps) < 10000:
                m = mmap.mmap(-1, 4096)
                mmaps.append(m)
        else:
                mmaps.pop(0).close()

        if n % 1000 == 0:
                n += 1
                for (dirpath, dirnames, filenames) in os.walk('/sys'):
                        for f in dirnames + filenames:
                                try:
                                        os.stat(os.path.join(dirpath, f))
                                except Exception as e:
                                        print(f'Experienced error stating {dirpath}/{f}: {e}')

        for i in mmaps:
                m[0:4095] = b'x'*4095

        time.sleep(1)