feat: speed up matching types in the ServiceBrowser by bdraco · Pull Request #1144 · python-zeroconf/python-zeroconf
Avoids some isinstance checks and uses an lru to generate the possible types. The LRU has a good hit rate:
2023-04-02 05:46:07.886 CRITICAL (SyncWorker_8) [homeassistant.components.profiler] Cache stats for lru_cache <function possible_types at 0x7f0e818d4dc0> at /usr/local/lib/python3.10/site-packages/zeroconf/_utils/name.py: CacheInfo(hits=1989, misses=375, maxsize=256, currsize=256)
2023-04-02 05:47:07.352 CRITICAL (SyncWorker_13) [homeassistant.components.profiler] Cache stats for lru_cache <function possible_types at 0x7f0e818d4dc0> at /usr/local/lib/python3.10/site-packages/zeroconf/_utils/name.py: CacheInfo(hits=2283, misses=387, maxsize=256, currsize=256)
2023-04-02 05:48:04.247 CRITICAL (SyncWorker_15) [homeassistant.components.profiler] Cache stats for lru_cache <function possible_types at 0x7f0e818d4dc0> at /usr/local/lib/python3.10/site-packages/zeroconf/_utils/name.py: CacheInfo(hits=2615, misses=387, maxsize=256, currsize=256)