> So you admit you just want to optimize prematurely?

I don't understand the purpose of these timing information, I don't use them. I would be more interested to know which functions take longer than XXX ms and so hangs the event loop.

By the way, it's not documentation how to enable asyncio logs:
http://docs.python.org/dev/library/asyncio.html

The asyncio logger is not documented. I would like to add a section listing development tools like asyncio.tasks._DEBUG=True and the "Future/Task exception was never retrieved" log.

Hum, it looks like asyncio.futures.STACK_DEBUG is not used.