Decision Workspace
cmap vs chashmap vs leapfrog
Side-by-side comparison of Rust crates
40
cmap
growingv0.3.0
Concurrent multi-writer hash-map using trie
58
chashmap
growingv2.2.2
Fast, concurrent hash maps with extensive API.
57
leapfrog
growingv0.3.3
A fast, lock-free concurrent hash map
Core Metrics
| cmap | chashmap | leapfrog | |
|---|---|---|---|
| Health Score | 40 | 58 | 57 |
| Total Downloads | 4.7K | 2.2M | 26.2K |
| 30d Downloads | 5 | 119.8K | 1.4K |
| Dependents | 0 | 598 | 9 |
| Releases | 3 | 12 | 10 |
| Last Updated | 1651d ago | 2585d ago | 4d ago |
| Age | 5y | 9y 1m | 4y 1m |
Health Breakdown
cmap
Maintenance
4
Quality
14
Community
6
Popularity
4
Documentation
12
chashmap
Maintenance
4
Quality
20
Community
15
Popularity
8
Documentation
11
leapfrog
Maintenance
17
Quality
16
Community
9
Popularity
5
Documentation
10
Technical Details
| cmap | chashmap | leapfrog | |
|---|---|---|---|
| Version | 0.3.0 | 2.2.2 | 0.3.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | MIT | MIT OR Apache-2.0 |
| Dependencies | 8 | 2 | 7 |
| Crate Size | 344KB | 15KB | 53KB |
| Features | 2 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | — | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 3 | 1 |
Links
Quick Verdict
- •chashmap leads with a health score of 58/100, but none of the options score above 80.
- •chashmap is depended on by 598 crates — strongest ecosystem trust.
- •⚠ cmap, chashmap have not been updated in over a year.
- •cmap, leapfrog are pre-1.0 — API may change.