Richard van der Hoff fa5c2bc082 Reduce set building in get_entities_changed ...

This line shows up as about 5% of cpu time on a synchrotron:

    not_known_entities = set(entities) - set(self._entity_to_key)

Presumably the problem here is that _entity_to_key can be largeish, and
building a set for its keys every time this function is called is slow.

Here we rewrite the logic to avoid building so many sets.

2018-07-12 11:37:44 +01:00

..

__init__.py

run isort

2018-07-09 16:09:20 +10:00

descriptors.py

run isort

2018-07-09 16:09:20 +10:00

dictionary_cache.py

run isort

2018-07-09 16:09:20 +10:00

expiringcache.py

run isort

2018-07-09 16:09:20 +10:00

lrucache.py

run isort

2018-07-09 16:09:20 +10:00

response_cache.py

replacing portions

2018-05-21 19:47:37 -05:00

snapshot_cache.py

Fix up logcontexts

2016-02-08 14:26:45 +00:00

stream_change_cache.py

Reduce set building in get_entities_changed

2018-07-12 11:37:44 +01:00

treecache.py

Consistently use six's iteritems and wrap lazy keys/values in list() if they're not meant to be lazy (#3307)

2018-05-31 19:03:47 +10:00