Decision Workspace
concurrent-slotmap vs slotmap vs arena-b
Side-by-side comparison of Rust crates
47
concurrent-slotmap
growingv0.2.0-alpha.1
A lock-free concurrent slotmap
56
slotmap
growingv1.1.1
Slotmap data structure
55
arena-b
growingv1.0.0
Production-grade bump allocator with lock-free, slab, and virtual-memory tooling for parsers, game engines, and request-scoped services
Core Metrics
| concurrent-slotmap | slotmap | arena-b | |
|---|---|---|---|
| Health Score | 47 | 56 | 55 |
| Total Downloads | 5.1K | 84.7M | 580 |
| 30d Downloads | 0 | 5.0M | 0 |
| Dependents | 2 | 5.2K | 4 |
| Releases | 3 | 21 | 17 |
| Last Updated | 353d ago | 219d ago | 194d ago |
| Age | 1y 10m | 8y | 7m |
Health Breakdown
concurrent-slotmap
Maintenance
7
Quality
9
Community
12
Popularity
4
Documentation
15
slotmap
Maintenance
7
Quality
15
Community
15
Popularity
8
Documentation
11
arena-b
Maintenance
11
Quality
20
Community
8
Popularity
3
Documentation
13
Technical Details
| concurrent-slotmap | slotmap | arena-b | |
|---|---|---|---|
| Version | 0.2.0-alpha.1 | 1.1.1 | 1.0.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | Zlib | MIT OR Apache-2.0 |
| Dependencies | 3 | 7 | 5 |
| Crate Size | 29KB | 62KB | 67KB |
| Features | 0 | 3 | 9 |
| Yanked % | 33.3% | 71.4% | 0.0% |
| Edition | 2021 | 2018 | 2021 |
| MSRV | 1.65 | 1.58.0 | — |
| Owners | 4 (team) | 1 | 1 |
Links
Quick Verdict
- •slotmap leads with a health score of 56/100, but none of the options score above 80.
- •slotmap is depended on by 5.2K crates — strongest ecosystem trust.
- •concurrent-slotmap is pre-1.0 — API may change.