Decision Workspace
flurry vs chashmap vs leapfrog
Side-by-side comparison of Rust crates
48
flurry
growingv0.5.2
Rust port of Java's ConcurrentHashMap
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
| flurry | chashmap | leapfrog | |
|---|---|---|---|
| Health Score | 48 | 58 | 57 |
| Total Downloads | 2.3M | 2.2M | 26.2K |
| 30d Downloads | 238.6K | 123.5K | 1.4K |
| Dependents | 198 | 598 | 9 |
| Releases | 11 | 12 | 10 |
| Last Updated | 493d ago | 2585d ago | 4d ago |
| Age | 6y 2m | 9y 1m | 4y 1m |
Health Breakdown
flurry
Maintenance
5
Quality
13
Community
12
Popularity
8
Documentation
10
chashmap
Maintenance
4
Quality
20
Community
15
Popularity
8
Documentation
11
leapfrog
Maintenance
17
Quality
16
Community
9
Popularity
5
Documentation
10
Technical Details
| flurry | chashmap | leapfrog | |
|---|---|---|---|
| Version | 0.5.2 | 2.2.2 | 0.3.3 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 11 | 2 | 7 |
| Crate Size | 89KB | 15KB | 53KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | — | 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.
- •flurry has the most downloads (2.3M), suggesting wider adoption.
- •chashmap is depended on by 598 crates — strongest ecosystem trust.
- •⚠ flurry, chashmap have not been updated in over a year.
- •flurry, leapfrog are pre-1.0 — API may change.