
Rust
Rust Is Not Always Faster and the Cases That Prove It
Rust gives you control over speed, not speed for free. Debug builds, extra clones, blocking calls and wrong algorithms can all make Rust code slower than a tuned alternative.
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Rust gives you control over speed, not speed for free. Debug builds, extra clones, blocking calls and wrong algorithms can all make Rust code slower than a tuned alternative.

The handful of habits behind most Rust speed: build in release, avoid needless allocation, use iterators and slices, pick the right collection and measure before tuning.