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bpo-34849: Don't log wating for selector.select in asyncio loop iteration (GH-9641)

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The waiting is pretty normal for any asyncio program, logging its time just adds
a noise to logs without any useful information provided.



https://bugs.python.org/issue34849
This commit is contained in:
Andrew Svetlov 2018-09-30 08:28:40 +03:00 • committed by Miss Islington (bot)
parent df8101517a
commit d5bd036138
3 changed files with 4 additions and 47 deletions
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23
Lib/asyncio/base_events.py
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@ -1719,28 +1719,7 @@ class BaseEventLoop(events.AbstractEventLoop):
when = self._scheduled[0]._when
timeout = min(max(0, when - self.time()), MAXIMUM_SELECT_TIMEOUT)
if self._debug and timeout != 0:
t0 = self.time()
event_list = self._selector.select(timeout)
dt = self.time() - t0
if dt >= 1.0:
level = logging.INFO
else:
level = logging.DEBUG
nevent = len(event_list)
if timeout is None:
logger.log(level, 'poll took %.3f ms: %s events',
dt * 1e3, nevent)
elif nevent:
logger.log(level,
'poll %.3f ms took %.3f ms: %s events',
timeout * 1e3, dt * 1e3, nevent)
elif dt >= 1.0:
logger.log(level,
'poll %.3f ms took %.3f ms: timeout',
timeout * 1e3, dt * 1e3)
else:
event_list = self._selector.select(timeout)
event_list = self._selector.select(timeout)
self._process_events(event_list)
# Handle 'later' callbacks that are ready.