Aikar 3a80ab303a Improvements to Timings concurrency and lookup performance ...

ConcurrentHashMap synchronizes on .computeIfAbsent even on hits,
so this does a .get(key) first, which most of our use should
be hits, and then falls back to the CHM computeIfAbsent for thread safe puts.

Also improve concurrency on handler and group collections to use a synchronized
list instead of an array deque for concurrency safety.

2019-02-23 14:22:43 -05:00

142 KiB

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