Decision Workspace
caring vs mmap-guard vs memmap2
Side-by-side comparison of Rust crates
37
caring
growingv0.3.0
Sharing is caring: a safe library for mmap'ing memory in multiple processes
51
mmap-guard
experimentalv0.2.0
Safe, guarded memory-mapped file I/O for Rust
66
memmap2
growingv0.9.10
Cross-platform Rust API for memory-mapped file IO
Core Metrics
| caring | mmap-guard | memmap2 | |
|---|---|---|---|
| Health Score | 37 | 51 | 66 |
| Total Downloads | 7.5K | 483 | 212.7M |
| 30d Downloads | 24 | 483 | 15.4M |
| Dependents | 1 | 0 | 14.4K |
| Releases | 4 | 2 | 35 |
| Last Updated | 2016d ago | 19d ago | 40d ago |
| Age | 5y 11m | 19d | 6y 2m |
Health Breakdown
caring
Maintenance
3
Quality
14
Community
6
Popularity
5
Documentation
9
mmap-guard
Maintenance
13
Quality
14
Community
6
Popularity
3
Documentation
15
memmap2
Maintenance
16
Quality
11
Community
16
Popularity
8
Documentation
15
Technical Details
| caring | mmap-guard | memmap2 | |
|---|---|---|---|
| Version | 0.3.0 | 0.2.0 | 0.9.10 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 OR BSD-3-Clause | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 5 | 3 | 4 |
| Crate Size | 12KB | 26KB | 35KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 5.7% |
| Edition | 2015 | 2024 | 2021 |
| MSRV | — | 1.89 | 1.63 |
| Owners | 1 | 1 | 4 |
Links
Quick Verdict
- •memmap2 leads with a health score of 66/100, but none of the options score above 80.
- •memmap2 is depended on by 14.4K crates — strongest ecosystem trust.
- •⚠ caring has not been updated in over a year.