import time


def sum():
    total = 0
    for i in range(50_000_000):
        total += 1
    return total


def main():
    start = time.time()
    sum()
    end = time.time()
    total_time = int((end - start) * 1000)
    print(f"Time in milliseconds - {total_time}")


main()

import time
from threading import Thread


def fn(n):
    total = 0
    for i in range(n):
        total += 1
    return total


def main():
    count = 50_000_000
    t1 = Thread(target=fn, args=(count // 2,))
    t2 = Thread(target=fn, args=(count // 2,))

    start = time.time()
    t1.start()
    t2.start()
    t1.join()
    t2.join()
    end = time.time()
    total_time = int((end - start) * 1000)

    print(f"Time in milliseconds - {total_time}")


main()

import time
import multiprocessing


def fn(n):
    total = 0
    for i in range(n):
        total += 1
    return total


def main():
    count = 50_000_000
    p1 = multiprocessing.Process(target=fn, args=(count // 2,))
    p2 = multiprocessing.Process(target=fn, args=(count // 2,))
    start = time.time()
    p1.start()
    p2.start()
    p1.join()
    p2.join()
    end = time.time()
    total_time = int((end - start) * 1000)

    print(f"Time in milliseconds - {total_time}")


main()

# Single Thread
perf record -e sched:sched_switch  -e sched:sched_process_fork -e 'sched:sched_wak*' \
   -k CLOCK_MONOTONIC  --call-graph dwarf -- viztracer -o viztracer-single_thread_gil.json --ignore_frozen -m  single_thread
perf script --no-inline | per4m perf2trace sched -o perf-single_thread.json
viztracer --log_multiprocess --combine perf-single_thread.json viztracer-single_thread_gil.json -o data-single_thread.html


# Two Threads
perf record -e sched:sched_switch  -e sched:sched_process_fork -e 'sched:sched_wak*' \
    -k CLOCK_MONOTONIC  --call-graph dwarf -- viztracer -o viztracer-two_threads-gil.json --ignore_frozen -m two_threads
perf script --no-inline | per4m perf2trace sched -o perf-two_threads.json
viztracer --combine perf-two_threads.json viztracer-two_threads-gil.json  -o data-two_threads.html


# Multiprocessing
viztracer --log_multiprocess multi_processing.py -o data-multi_processing.html