Decision Workspace
pflock vs vlock vs async-lock
Side-by-side comparison of Rust crates
39
pflock
growingv0.2.0
A phase-fair reader-writer lock that reduces worst-case blocking for readers. Especially useful for multiprocessor real-time systems.
43
vlock
growingv0.2.2
A fast and scalable multi-version shared state lock with wait-free read access.
73
async-lock
stablev3.4.2
Async synchronization primitives
Core Metrics
| pflock | vlock | async-lock | |
|---|---|---|---|
| Health Score | 39 | 43 | 73 |
| Total Downloads | 51.6K | 5.7K | 192.4M |
| 30d Downloads | 110 | 51 | 11.8M |
| Dependents | 1 | 2 | 3.4K |
| Releases | 5 | 4 | 32 |
| Last Updated | 1152d ago | 476d ago | 96d ago |
| Age | 5y 7m | 2y 6m | 6y 10m |
Health Breakdown
pflock
Maintenance
3
Quality
15
Community
6
Popularity
6
Documentation
9
vlock
Maintenance
6
Quality
16
Community
7
Popularity
4
Documentation
10
async-lock
Maintenance
13
Quality
20
Community
20
Popularity
8
Documentation
12
Technical Details
| pflock | vlock | async-lock | |
|---|---|---|---|
| Version | 0.2.0 | 0.2.2 | 3.4.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | MIT OR Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 2 | 0 | 9 |
| Crate Size | 7KB | 14KB | 40KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2021 | 2021 |
| MSRV | — | — | 1.85 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •async-lock leads with a health score of 73/100, but none of the options score above 80.
- •async-lock is depended on by 3.4K crates — strongest ecosystem trust.
- •⚠ pflock, vlock have not been updated in over a year.
- •pflock, vlock are pre-1.0 — API may change.