Decision Workspace
fastarena vs safe-bump vs rc_bump
Side-by-side comparison of Rust crates
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.
51
safe-bump
experimentalv0.2.1
Safe typed arena — zero unsafe, auto Drop, checkpoint/rollback, single-thread Arena + concurrent SharedArena
39
rc_bump
growingv0.1.2
An arena for heterogeneous types and without lifetimes
Core Metrics
| fastarena | safe-bump | rc_bump | |
|---|---|---|---|
| Health Score | 58 | 51 | 39 |
| Total Downloads | 109 | 162 | 3.9K |
| 30d Downloads | 109 | 120 | 5 |
| Dependents | 1 | 2 | 0 |
| Releases | 4 | 3 | 3 |
| Last Updated | 1d ago | 32d ago | 869d ago |
| Age | 5d | 1m | 2y 4m |
Health Breakdown
fastarena
Maintenance
19
Quality
15
Community
7
Popularity
2
Documentation
15
safe-bump
Maintenance
12
Quality
14
Community
7
Popularity
3
Documentation
15
rc_bump
Maintenance
5
Quality
14
Community
6
Popularity
4
Documentation
10
Technical Details
| fastarena | safe-bump | rc_bump | |
|---|---|---|---|
| Version | 0.1.3 | 0.2.1 | 0.1.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 3 | 1 | 2 |
| Crate Size | 43KB | 27KB | 168KB |
| Features | 1 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.66 | 1.93 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •fastarena leads with a health score of 58/100, but none of the options score above 80.
- •rc_bump has the most downloads (3.9K), suggesting wider adoption.
- •⚠ rc_bump has not been updated in over a year.