#prog #rust #rustlib

schnellru — A fast and flexible LRU map

* Blazingly fast. Up to twice as fast as the lru crate, and with less memory overhead.
* Can be also used as an ordered map, with roughly the same performance as indexmap, but with added support for O(1) removals without changing the element order (where indexmap only supports O(n) non-perturbing removals).
* Customizable. Out-of-box can be limited by length or by memory usage, but supports custom limiters which can be made to limit the map by whatever you want.
* Tested, miri-clean, clippy-clean and fuzzed.
* Supports no_std.