Decision Workspace
frame_mem_utils vs arrayvec vs smallvec
Side-by-side comparison of Rust crates
39
frame_mem_utils
growingv0.2.5
a few stack oriented utileties designed with unsafe in mind
75
arrayvec
growingv0.7.8
A vector with fixed capacity, backed by an array (it can be stored on the stack too). Implements fixed capacity ArrayVec and ArrayString.
74
smallvec
stablev1.15.2
'Small vector' optimization: store up to a small number of items on the stack
Core Metrics
| frame_mem_utils | arrayvec | smallvec | |
|---|---|---|---|
| Health Score | 39 | 75 | 74 |
| Total Downloads | 831 | 466.0M | 970.5M |
| 30d Downloads | 0 | 20.8M | 45.7M |
| Dependents | 0 | 17.6K | 63.8K |
| Releases | 4 | 57 | 77 |
| Last Updated | 210d ago | 11d ago | 32d ago |
| Age | 1y | 11y 1m | 11y 3m |
Health Breakdown
frame_mem_utils
Maintenance
10
Quality
11
Community
5
Popularity
3
Documentation
10
arrayvec
Maintenance
17
Quality
16
Community
20
Popularity
8
Documentation
14
smallvec
Maintenance
18
Quality
17
Community
19
Popularity
8
Documentation
12
Technical Details
| frame_mem_utils | arrayvec | smallvec | |
|---|---|---|---|
| Version | 0.2.5 | 0.7.8 | 1.15.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 0 | 6 | 8 |
| Crate Size | 18KB | 33KB | 35KB |
| Features | 0 | 2 | 10 |
| Yanked % | 25.0% | 0.0% | 26.0% |
| Edition | 2024 | 2018 | 2018 |
| MSRV | — | 1.51 | — |
| Owners | 1 | 2 (team) | 3 (team) |
Links
Quick Verdict
- •arrayvec leads with a health score of 75/100, but none of the options score above 80.
- •smallvec has the most downloads (970.5M), suggesting wider adoption.
- •smallvec is depended on by 63.8K crates — strongest ecosystem trust.
- •frame_mem_utils, arrayvec are pre-1.0 — API may change.