Caches

[][Github-url] [][CI-url] [][codecov-url] [][doc-url] [][crates-url] [][crates-url] [][license-apache-url] [][license-mit-url] This is a Rust implementation for popular caches (support no_std). See [Introduction](#introduction), [Installation](#installation) and [Usages](#usages) for more details. English | [简体中文](README-zh_CN.md)

Introduction

The MSRV for this crate is 1.55.0.

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

Installation

• std toml [dependencies] caches = "0.2"
• no_std toml [dependencies] caches = {version: "0.2", features: ["core"]}

Usages

Please see [examples].

Roadmap

• [x] 0.2: Support TinyLFU, SampledLFU, WTinyLFUCache
• [ ] 0.3: Support LIRS, DLIRS, DSLRU
• [ ] 0.4: Add ttl feature

Related

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.}