speedtest.py

#!/usr/bin/env python

import os
import sys
import random
import time
  
random.seed(1234)

PATH = "/mnt/gdrive/large_random_file"
CHUNK_SIZE = 16*1024
CHUNKS_READ_COUNT = 1000


fh = os.open(PATH, os.O_RDONLY)
size = os.path.getsize(PATH)
readData = b''

start = time.time()
for _ in range(CHUNKS_READ_COUNT):
    os.lseek(fh, random.randrange(size-CHUNK_SIZE), os.SEEK_SET)
    readData += os.read(fh, CHUNK_SIZE)
end = time.time()

execution = end - start
print("Finished. Took {} seconds. Average {} reads per second".format(execution, CHUNKS_READ_COUNT / execution))