Decision Workspace
memvec vs fmmap vs memmapix
Side-by-side comparison of Rust crates
39
memvec
growingv0.2.0
Memory-backed vector, not buffer. Designed for for mmap. Not MemMap, but MemVec!
55
fmmap
growingv0.4.0
A flexible and convenient high-level mmap for zero-copy file I/O.
42
memmapix
growingv0.7.6
No libc, pure Rust cross-platform Rust API for memory-mapped file IO
Core Metrics
| memvec | fmmap | memmapix | |
|---|---|---|---|
| Health Score | 39 | 55 | 42 |
| Total Downloads | 96.3K | 213.1K | 147.1K |
| 30d Downloads | 3.8K | 16.2K | 3.7K |
| Dependents | 0 | 138 | 45 |
| Releases | 7 | 14 | 11 |
| Last Updated | 283d ago | 398d ago | 921d ago |
| Age | 3y 11m | 4y 3m | 3y 8m |
Health Breakdown
memvec
Maintenance
6
Quality
11
Community
3
Popularity
6
Documentation
13
fmmap
Maintenance
7
Quality
15
Community
12
Popularity
6
Documentation
15
memmapix
Maintenance
4
Quality
9
Community
11
Popularity
6
Documentation
12
Technical Details
| memvec | fmmap | memmapix | |
|---|---|---|---|
| Version | 0.2.0 | 0.4.0 | 0.7.6 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | BSD-2-Clause | MIT OR Apache-2.0 | MIT/Apache-2.0 |
| Dependencies | 2 | 20 | 3 |
| Crate Size | 21KB | 73KB | 30KB |
| Features | 0 | 6 | 0 |
| Yanked % | 14.3% | 0.0% | 54.5% |
| Edition | 2021 | 2021 | 2018 |
| MSRV | — | 1.65.0 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •fmmap leads with a health score of 55/100, but none of the options score above 80.
- •fmmap is depended on by 138 crates — strongest ecosystem trust.
- •⚠ fmmap, memmapix have not been updated in over a year.