[issue24451] Add metrics to future objects (concurrent or asyncio?)

[STINNER Victor]

STINNER Victor added the comment:

asyncio must be as fast as possible in the default configuration. timestamps look more as a debug feature for me, or a specific use case. I suggested to make asyncio/concurrent.futures "pluggable/hookable" instead of modifying the default configuration. For example, in debug mode, asyncio uses a CoroWrapper class for coroutines which stores more information (ex: traceback where it was created), useless for debug.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24451>
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