计算一个方法需要多长时间才能完成？python

import time

def my_function():
    # 模拟一个耗时的操作
    time.sleep(2)

start_time = time.time()
my_function()
end_time = time.time()

execution_time = end_time - start_time
print(f"方法执行时间: {execution_time} 秒")

import asyncio
import time

async def my_async_function():
    await asyncio.sleep(2)

start_time = time.perf_counter()
asyncio.run(my_async_function())
end_time = time.perf_counter()

execution_time = end_time - start_time
print(f"异步方法执行时间: {execution_time} 秒")

import concurrent.futures

def my_function():
    # 模拟一个耗时的操作
    time.sleep(2)

with concurrent.futures.ThreadPoolExecutor() as executor:
    start_time = time.time()
    futures = [executor.submit(my_function) for _ in range(5)]
    concurrent.futures.wait(futures)
    end_time = time.time()

execution_time = end_time - start_time
print(f"多线程方法执行时间: {execution_time} 秒")