Decision Workspace
simd-popcnt vs hamming-bitwise-fast vs hamming
Side-by-side comparison of Rust crates
50
simd-popcnt
experimentalv0.2.1
Fast bit population count (number of 1 bits) of a byte slice using POPCNT, AVX2, AVX512, ARM NEON and ARM SVE.
62
hamming-bitwise-fast
stablev1.1.0
Fast bitwise Hamming distance using auto-vectorization with runtime SIMD detection on x86.
51
hamming
growingv0.1.3
Count ones, fast (aka popcount, hamming weight). This provides a performant popcount and bitwise hamming distance for a slice of bytes.
Core Metrics
| simd-popcnt | hamming-bitwise-fast | hamming | |
|---|---|---|---|
| Health Score | 50 | 62 | 51 |
| Total Downloads | 56 | 76.9K | 1.7M |
| 30d Downloads | 0 | 4.6K | 32.5K |
| Dependents | 0 | 12 | 126 |
| Releases | 3 | 2 | 4 |
| Last Updated | 7d ago | 54d ago | 3863d ago |
| Age | 12d | 1y 6m | 11y 1m |
Health Breakdown
simd-popcnt
Maintenance
14
Quality
17
Community
5
Popularity
2
Documentation
12
hamming-bitwise-fast
Maintenance
14
Quality
19
Community
8
Popularity
6
Documentation
15
hamming
Maintenance
8
Quality
16
Community
9
Popularity
7
Documentation
11
Technical Details
| simd-popcnt | hamming-bitwise-fast | hamming | |
|---|---|---|---|
| Version | 0.2.1 | 1.1.0 | 0.1.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT/Apache-2.0 |
| Dependencies | 0 | 8 | 2 |
| Crate Size | 23KB | 34KB | 10KB |
| Features | 2 | 2 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | — |
| MSRV | 1.89 | 1.61 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •hamming-bitwise-fast leads with a health score of 62/100, but none of the options score above 80.
- •hamming has the most downloads (1.7M), suggesting wider adoption.
- •hamming is depended on by 126 crates — strongest ecosystem trust.
- •⚠ hamming has not been updated in over a year.
- •simd-popcnt, hamming are pre-1.0 — API may change.