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All things high performance Rust.

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Criterion.rs v0.2 - a statistics-driven benchmarking library for Rust by Brook Heisler
Criterion.rs is a statistics-driven benchmarking library for Rust. It provides precise measurements of changes in the performance of benchmarked code, and gives strong statistical confidence that apparent performance changes are real and not simply noise. Clear output, a simple API and reasonable defaults make it easy to use even for developers without a background in statistics. Unlike the benchmarking harness provided by Rust, Criterion.rs can be used with stable versions of the compiler.
Benchmark of different Async approaches in Rust by Michal 'vorner' Vaner
The story about Rust’s async is still a bit in flux. There’s a bunch of libraries with their pros and cons and different approaches. Even I’m a bit to blame for that, as I’m writing one of my own, called Corona.
Faster Progress Report 2 by Adam Niederer
faster began as a yak shave, created to aid base💯 in its quest to become the fastest meme on Github. Writing an explicit AVX2-accelerated version of base💯's encoder and decoder, then realizing I'd have to do the same thing again to see the speedups on my Ivy Bridge desktop, pushed me to make this library. Months later, it has blossomed into its own project, and has eclipsed base💯 in both popularity and promise.