Decision Workspace
boxcar vs qubit-atomic vs virtual-buffer
Side-by-side comparison of Rust crates
54
boxcar
growingv0.2.14
A concurrent, append-only vector
60
qubit-atomic
experimentalv0.14.0
User-friendly atomic operations wrapper providing JDK-like atomic API
59
virtual-buffer
growingv2.0.0
A cross-platform library for dealing with buffers backed by raw virtual memory
Core Metrics
| boxcar | qubit-atomic | virtual-buffer | |
|---|---|---|---|
| Health Score | 54 | 60 | 59 |
| Total Downloads | 21.9M | 1.7K | 10.7K |
| 30d Downloads | 1.1M | 0 | 0 |
| Dependents | 645 | 112 | 3 |
| Releases | 16 | 20 | 5 |
| Last Updated | 334d ago | 2d ago | 157d ago |
| Age | 4y 4m | 3m | 2y |
Health Breakdown
boxcar
Maintenance
8
Quality
12
Community
14
Popularity
8
Documentation
12
qubit-atomic
Maintenance
19
Quality
10
Community
12
Popularity
4
Documentation
15
virtual-buffer
Maintenance
10
Quality
16
Community
13
Popularity
5
Documentation
15
Technical Details
| boxcar | qubit-atomic | virtual-buffer | |
|---|---|---|---|
| Version | 0.2.14 | 0.14.0 | 2.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 2 | 4 | 2 |
| Crate Size | 28KB | 83KB | 56KB |
| Features | 0 | 0 | 3 |
| Yanked % | 6.3% | 5.0% | 60.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.72.0 | 1.94 | 1.87.0 |
| Owners | 1 | 1 | 4 (team) |
Links
Quick Verdict
- •qubit-atomic leads with a health score of 60/100, but none of the options score above 80.
- •boxcar has the most downloads (21.9M), suggesting wider adoption.
- •boxcar is depended on by 645 crates — strongest ecosystem trust.
- •boxcar, qubit-atomic are pre-1.0 — API may change.