Drop logging when asyncio waits in selector.select()

[asvetlov]

BPO	34849
Nosy	@asvetlov, @1st1, @miss-islington
PRs	bpo-34849: Don't log wating for selector.select in asyncio loop iteration #9641

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-10-07.21:26:37.439>
created_at = <Date 2018-09-30.05:04:51.672>
labels = ['type-bug', '3.8', 'expert-asyncio']
title = 'Drop logging when asyncio waits in selector.select()'
updated_at = <Date 2018-10-07.21:26:37.438>
user = 'https://github.com/asvetlov'

bugs.python.org fields:

activity = <Date 2018-10-07.21:26:37.438>
actor = 'asvetlov'
assignee = 'none'
closed = True
closed_date = <Date 2018-10-07.21:26:37.439>
closer = 'asvetlov'
components = ['asyncio']
creation = <Date 2018-09-30.05:04:51.672>
creator = 'asvetlov'
dependencies = []
files = []
hgrepos = []
issue_num = 34849
keywords = ['patch']
message_count = 2.0
messages = ['326702', '326703']
nosy_count = 3.0
nosy_names = ['asvetlov', 'yselivanov', 'miss-islington']
pr_nums = ['9641']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34849'
versions = ['Python 3.8']

[asvetlov]

The waiting is the pretty normal case: no IO is performed and no immediate activities are scheduled.

Therefore logging such cases is just a noise.

[miss-islington]

New changeset d5bd036 by Miss Islington (bot) (Andrew Svetlov) in branch 'master':
bpo-34849: Don't log wating for selector.select in asyncio loop iteration (GH-9641)
d5bd036