Decision Workspace
async-lock vs async-rwlock vs lock_api
Side-by-side comparison of Rust crates
71
async-lock
growingv3.4.2
Async synchronization primitives
61
async-rwlock
growingv1.3.1
Async reader-writer lock
60
lock_api
growingv0.4.14
Wrappers to create fully-featured Mutex and RwLock types. Compatible with no_std.
Core Metrics
| async-lock | async-rwlock | lock_api | |
|---|---|---|---|
| Health Score | 71 | 61 | 60 |
| Total Downloads | 218.4M | 2.8M | 728.2M |
| 30d Downloads | 14.3M | 22.3K | 59.0M |
| Dependents | 3.8K | 227 | 1.3K |
| Releases | 32 | 8 | 27 |
| Last Updated | 155d ago | 419d ago | 234d ago |
| Age | 7y | 6y 11m | 7y 11m |
Health Breakdown
async-lock
Maintenance
11
Quality
20
Community
20
Popularity
8
Documentation
12
async-rwlock
Maintenance
5
Quality
19
Community
17
Popularity
8
Documentation
12
lock_api
Maintenance
10
Quality
14
Community
16
Popularity
8
Documentation
12
Technical Details
| async-lock | async-rwlock | lock_api | |
|---|---|---|---|
| Version | 3.4.2 | 1.3.1 | 0.4.14 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | Apache-2.0 OR MIT | Apache-2.0 OR MIT | MIT OR Apache-2.0 |
| Dependencies | 9 | 5 | 3 |
| Crate Size | 40KB | 7KB | 29KB |
| Features | 3 | 0 | 4 |
| Yanked % | 0.0% | 0.0% | 7.4% |
| Edition | 2021 | 2018 | 2021 |
| MSRV | 1.85 | — | 1.71.0 |
| Owners | 2 (team) | 2 (team) | 2 |
Links
Quick Verdict
- •async-lock leads with a health score of 71/100, but none of the options score above 80.
- •lock_api has the most downloads (728.2M), suggesting wider adoption.
- •async-lock is depended on by 3.8K crates — strongest ecosystem trust.
- •⚠ async-rwlock has not been updated in over a year.
- •lock_api is pre-1.0 — API may change.