Decision Workspace
arena-b vs bump-scope vs fastarena
Side-by-side comparison of Rust crates
55
arena-b
experimentalv1.0.0
Production-grade bump allocator with lock-free, slab, and virtual-memory tooling for parsers, game engines, and request-scoped services
65
bump-scope
stablev2.2.0
A fast bump allocator that supports allocation scopes / checkpoints. Aka an arena for values of arbitrary types.
58
fastarena
experimentalv0.1.3
A zero-dependency, bump-pointer arena allocator with RAII transactions, nested savepoints, optional LIFO destructor tracking, and ArenaVec — built for compilers, storage engines, and high-throughput request-scoped workloads.
Core Metrics
| arena-b | bump-scope | fastarena | |
|---|---|---|---|
| Health Score | 55 | 65 | 58 |
| Total Downloads | 534 | 149.2K | 109 |
| 30d Downloads | 21 | 24.2K | 109 |
| Dependents | 0 | 13 | 1 |
| Releases | 17 | 86 | 4 |
| Last Updated | 86d ago | 30d ago | 1d ago |
| Age | 4m | 2y | 5d |
Health Breakdown
arena-b
Maintenance
14
Quality
19
Community
6
Popularity
3
Documentation
13
bump-scope
Maintenance
17
Quality
18
Community
9
Popularity
6
Documentation
15
fastarena
Maintenance
19
Quality
15
Community
7
Popularity
2
Documentation
15
Technical Details
| arena-b | bump-scope | fastarena | |
|---|---|---|---|
| Version | 1.0.0 | 2.2.0 | 0.1.3 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT |
| Dependencies | 5 | 10 | 3 |
| Crate Size | 67KB | 240KB | 43KB |
| Features | 9 | 19 | 1 |
| Yanked % | 0.0% | 1.2% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | — | 1.85.1 | 1.66 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •bump-scope leads with a health score of 65/100, but none of the options score above 80.
- •fastarena is pre-1.0 — API may change.