Decision Workspace
tailvec vs fixed-slice-vec vs smallvec
Side-by-side comparison of Rust crates
46
tailvec
growingv0.2.13
Split Vec to mutable slice and TailVec, the TailVec can push or pop etc
40
fixed-slice-vec
growingv0.10.0
`FixedSliceVec` is a dynamic length Vec with runtime-determined maximum capacity backed by a slice.
74
smallvec
stablev1.15.2
'Small vector' optimization: store up to a small number of items on the stack
Core Metrics
| tailvec | fixed-slice-vec | smallvec | |
|---|---|---|---|
| Health Score | 46 | 40 | 74 |
| Total Downloads | 16.8K | 88.7K | 970.5M |
| 30d Downloads | 0 | 1.3K | 48.6M |
| Dependents | 11 | 19 | 63.8K |
| Releases | 19 | 10 | 77 |
| Last Updated | 431d ago | 1440d ago | 32d ago |
| Age | 1y 10m | 6y 5m | 11y 3m |
Health Breakdown
tailvec
Maintenance
8
Quality
14
Community
9
Popularity
5
Documentation
10
fixed-slice-vec
Maintenance
4
Quality
9
Community
12
Popularity
6
Documentation
9
smallvec
Maintenance
18
Quality
17
Community
19
Popularity
8
Documentation
12
Technical Details
| tailvec | fixed-slice-vec | smallvec | |
|---|---|---|---|
| Version | 0.2.13 | 0.10.0 | 1.15.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 0 | 2 | 8 |
| Crate Size | 13KB | 20KB | 35KB |
| Features | 2 | 0 | 10 |
| Yanked % | 10.5% | 50.0% | 26.0% |
| Edition | 2021 | 2018 | 2018 |
| MSRV | — | — | — |
| Owners | 1 | 2 | 3 (team) |
Links
Quick Verdict
- •smallvec leads with a health score of 74/100, but none of the options score above 80.
- •smallvec is depended on by 63.8K crates — strongest ecosystem trust.
- •⚠ tailvec, fixed-slice-vec have not been updated in over a year.
- •tailvec, fixed-slice-vec are pre-1.0 — API may change.