Decision Workspace
mmap-wrapper vs mmapcell vs fmmap
Side-by-side comparison of Rust crates
54
mmap-wrapper
growingv2.0.1
a simple wrapper for the memmap2 crate to cast mmap backed pointers to structs
47
mmapcell
growingv0.2.2
a simple wrapper for the memmap2 crate to cast mmap backed pointers to structs
55
fmmap
growingv0.4.0
A flexible and convenient high-level mmap for zero-copy file I/O.
Core Metrics
| mmap-wrapper | mmapcell | fmmap | |
|---|---|---|---|
| Health Score | 54 | 47 | 55 |
| Total Downloads | 6.4K | 3.8K | 213.1K |
| 30d Downloads | 54 | 64 | 15.7K |
| Dependents | 5 | 9 | 138 |
| Releases | 5 | 3 | 14 |
| Last Updated | 565d ago | 499d ago | 398d ago |
| Age | 1y 7m | 1y 5m | 4y 3m |
Health Breakdown
mmap-wrapper
Maintenance
7
Quality
21
Community
8
Popularity
5
Documentation
13
mmapcell
Maintenance
6
Quality
15
Community
9
Popularity
4
Documentation
13
fmmap
Maintenance
7
Quality
15
Community
12
Popularity
6
Documentation
15
Technical Details
| mmap-wrapper | mmapcell | fmmap | |
|---|---|---|---|
| Version | 2.0.1 | 0.2.2 | 0.4.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT | MIT | MIT OR Apache-2.0 |
| Dependencies | 1 | 2 | 20 |
| Crate Size | 4KB | 3KB | 73KB |
| Features | 2 | 0 | 6 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| 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.
- •⚠ mmap-wrapper, mmapcell, fmmap have not been updated in over a year.
- •mmapcell, fmmap are pre-1.0 — API may change.