Steven D'Aprano <[email protected]>:
> On Wed, 17 Feb 2016 01:17 am, Marko Rauhamaa wrote:
>
>> Ok, yes, but those "background tasks" monopolize the CPU once they are
>> scheduled to run.
>
> Can you show some code demonstrating this?
Sure:
========================================================================
#!/usr/bin/env python3
import asyncio, time
def main():
asyncio.get_event_loop().run_until_complete(asyncio.wait([
background_task(),
looping_task() ]))
@asyncio.coroutine
def looping_task():
while True:
yield from asyncio.sleep(1)
print(int(time.time()))
@asyncio.coroutine
def background_task():
yield from asyncio.sleep(4)
t = time.time()
while time.time() - t < 10:
pass
if __name__ == '__main__':
main()
========================================================================
which prints:
1455642629
1455642630
1455642631
1455642642
1455642643
1455642644
1455642645
Marko
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