gistfile1.py

import asyncio
import time

I = 0

def test2():
    yield from ()
    global I
    I += 1

def test():
    for i in range(10**5):
        yield from asyncio.Task(test2())


loop = asyncio.get_event_loop()
st = time.monotonic()
loop.run_until_complete(test())
print(time.monotonic() - st)

print(I)