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THIS CRATE IS DEPRECATED. Instead, you should prefer the thread_local crate. In particular, the CachedThreadLocal should replace the pool in this crate (still optimizing for the single thread case, but also being much faster in the multithreaded case).

mempool

This crate provides a fast thread safe memory pool for reusing allocations. It aggressively optimizes for the single-threaded use case, but gracefully supports access from multiple threads simultaneously. In particular, values in a pool may not be shared across threads.

Dual-licensed under MIT or the UNLICENSE.

Documentation

http://burntsushi.net/rustdoc/mempool/

Usage

To use this crate, add mempool as a dependency to your project's Cargo.toml:

[dependencies]
mempool = "0.3"

Benchmarks

This crate currently uses the mempool_get_put_tls approach.

test bench::crossbeam_ms_get_put      ... bench:         105 ns/iter (+/- 4)
test bench::crossbeam_seg_get_put     ... bench:          87 ns/iter (+/- 25)
test bench::crossbeam_treiber_get_put ... bench:          93 ns/iter (+/- 1)
test bench::mempool_get_put_tls       ... bench:           1 ns/iter (+/- 0)
test bench::mpmc_get_put              ... bench:          30 ns/iter (+/- 0)
test bench::mutex_get_put             ... bench:          46 ns/iter (+/- 0)

Motivation

I needed a very fast way to reuse allocations across multiple threads, potentially optimizing single threaded use over multithreaded use.

Future work