13 releases

0.3.0	Jan 10, 2025
0.2.8	Dec 2, 2023
0.2.7	Oct 31, 2023
0.2.4	Jun 19, 2023
0.2.0	Sep 28, 2021

#188 in Algorithms

2,956 downloads per month
Used in 5 crates (2 directly)

MIT/Apache

355KB
5.5K SLoC

Caches

This is a Rust implementation for popular caches (support no_std).

See Introduction, Installation and Usages for more details.

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Introduction

The MSRV for this crate is 1.55.0.

LRU
- LRUCache, SegmentedCache, TwoQueueCache and AdaptiveCache.
LFU
- TinyLFU, SampledLFU, and WTinyLFUCache

Installation

std
```
[dependencies]
caches = "0.3" 
```

no_std

[dependencies]
caches = { version = "0.3", default-features = false, features = ["libm", "hashbrown"] }

Usages

Please see examples.

If you want a high-performance thread-safe modern cache, please see https://crates.io/crates/stretto

Acknowledgments

The implementation of RawLRU is highly inspired by Jerome Froelich's LRU implementation and std::collections library of Rust.
Thanks for HashiCorp's golang-lru providing the amazing Go implementation.
Ramakrishna's paper: Caching strategies to improve disk system performance
The implementation of TinyLFU and SampledLFU are inspired by Dgraph's ristretto and dgryski's go-tinylfu.
Gil Einziger's paper: TinyLFU: A Highly Efficient Cache Admission Policy

License

^{Licensed under either of Apache License, Version
2.0 or MIT license at your option.}
_{Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this project by you, as defined in the Apache-2.0 license,
shall be dual licensed as above, without any additional terms or conditions.}

Dependencies

~0.9–1.7MB
~36K SLoC