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Crate
criterion
Statistics-driven microbenchmarking framework for Rust.
What it is
criterion runs benchmarks multiple times with statistical analysis, computing mean and standard deviation, detecting performance regressions across runs, and generating HTML reports. It integrates with cargo bench and supports async benchmarks via tokio.
Why it is commonly used
The standard benchmarking tool in Rust. Used in performance-sensitive libraries and applications to measure and track hot code paths — serialization, parsing, data structures, and algorithm implementations.
483
Repositories
95%
Actively maintained
454
Updated ≤ 30 days
1.9M
Total stars
415
Owners
Counted from the Cargo.toml manifests of the 483 indexed repositories that declare criterion as a dependency — not download counts. Dependency data last verified 2026-08-13.
Often used with
Crates that show up unusually often in criterion projects. The most distinctive pairings rank first — crates these projects use far more than the average indexed Rust project does, not just crates that are popular everywhere. Each percentage is the share of criterion projects that also use it.
pprof10.8%proptest31.3%prost-build10.4%rand_distr11.2%insta20.5%rstest17%tikv-jemallocator19.7%sha311.2%mockall11.4%pretty_assertions18.2%half10.4%pin-project14.5%rand_chacha13.7%static_assertions11.2%serial_test11.8%opentelemetry_sdk24%tracing-opentelemetry18.8%http-body10.1%num-bigint14.9%opentelemetry-otlp22.2%ahash17.2%num_cpus20.7%opentelemetry24.8%hashbrown19.5%
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