Decision Workspace
rdrand vs hyper-thread-random vs fastrand
Side-by-side comparison of Rust crates
61
rdrand
growingv0.9.0
An implementation of random number generator based on rdrand and rdseed instructions
39
hyper-thread-random
growingv0.4.2
Provides hyper-thread local random number generators optimized for recent Intel x86-64 chips with the `RDRAND` instruction; falls back to rand crate for others.
73
fastrand
stablev2.4.1
A simple and fast random number generator
Core Metrics
| rdrand | hyper-thread-random | fastrand | |
|---|---|---|---|
| Health Score | 61 | 39 | 73 |
| Total Downloads | 37.8M | 8.7K | 649.1M |
| 30d Downloads | 1.1M | 0 | 53.2M |
| Dependents | 57 | 12 | 47.1K |
| Releases | 26 | 2 | 29 |
| Last Updated | 10d ago | 2958d ago | 49d ago |
| Age | 11y 5m | 8y 1m | 5y 12m |
Health Breakdown
rdrand
Maintenance
15
Quality
15
Community
8
Popularity
8
Documentation
15
hyper-thread-random
Maintenance
3
Quality
15
Community
8
Popularity
5
Documentation
8
fastrand
Maintenance
15
Quality
20
Community
19
Popularity
8
Documentation
11
Technical Details
| rdrand | hyper-thread-random | fastrand | |
|---|---|---|---|
| Version | 0.9.0 | 0.4.2 | 2.4.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | ISC | MIT | Apache-2.0 OR MIT |
| Dependencies | 4 | 1 | 6 |
| Crate Size | 17KB | 8KB | 21KB |
| Features | 1 | 0 | 4 |
| Yanked % | 0.0% | 0.0% | 3.5% |
| Edition | 2024 | — | 2018 |
| MSRV | 1.86.0 | — | 1.63 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •fastrand leads with a health score of 73/100, but none of the options score above 80.
- •fastrand is depended on by 47.1K crates — strongest ecosystem trust.
- •⚠ hyper-thread-random has not been updated in over a year.
- •rdrand, hyper-thread-random are pre-1.0 — API may change.