Prints access times of HDD vs RAM

hdd-python-optimization.py

# Tests whether python optimizes file reads or not
# Spoiler: apparently it does but it doesn't make much of a difference for this experiment
import time

def count_time(func):
    def wrapper(*args, **kwargs):
        start = time.time()
        func(*args, **kwargs)
        end = time.time()
        print(f"Time: \t{format(end - start, '.9f')}s")
    return wrapper


@count_time
def read_file_n_times(filename, n=1):
    for _ in range(n):
        with open(filename) as fp:
            fp.read()


for _ in range(100):
    read_file_n_times('hello.txt')

hdd-vs-ram.py

import time

def get_hdd_time():
    start = time.time()
    fp = open('hello.txt')
    fp.read()
    end = time.time()

    return end - start


def get_ram_time():
    arr = [i for i in range(1000)]
    start = time.time()
    a = arr[2]
    end = time.time()

    return end - start


if __name__ == '__main__':
    samples = 100
    total_hdd_time = 0
    total_ram_time = 0

    for i in range(samples):
        total_hdd_time += get_hdd_time()
        total_ram_time += get_ram_time()

    print(f"Average HDD time: {format(total_hdd_time/samples, '.9f')}s")
    print(f"Average RAM time: {format(total_ram_time/samples, '.9f')}s")