Decision Workspace
ration vs psx-shm vs mmap-io
Side-by-side comparison of Rust crates
38
ration
growingv0.2.1
A shared memory library
50
psx-shm
growingv0.2.1
POSIX shared memory wrapper.
66
mmap-io
growingv1.0.0
Zero-copy memory-mapped file I/O for Rust. Safe concurrent reads, writes, and atomic views across Linux, macOS, and Windows. Built for databases, log structures, game runtimes, caches, and IPC.
Core Metrics
| ration | psx-shm | mmap-io | |
|---|---|---|---|
| Health Score | 38 | 50 | 66 |
| Total Downloads | 2.1K | 9.8K | 8.2K |
| 30d Downloads | 0 | 1.4K | 0 |
| Dependents | 0 | 15 | 40 |
| Releases | 3 | 4 | 11 |
| Last Updated | 439d ago | 181d ago | 7d ago |
| Age | 1y 3m | 2y 10m | 9m |
Health Breakdown
ration
Maintenance
6
Quality
15
Community
3
Popularity
4
Documentation
10
psx-shm
Maintenance
9
Quality
15
Community
8
Popularity
5
Documentation
13
mmap-io
Maintenance
19
Quality
17
Community
10
Popularity
5
Documentation
15
Technical Details
| ration | psx-shm | mmap-io | |
|---|---|---|---|
| Version | 0.2.1 | 0.2.1 | 1.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | MPL-2.0 | Apache-2.0 |
| Dependencies | 2 | 2 | 14 |
| Crate Size | 11KB | 11KB | 178KB |
| Features | 0 | 0 | 10 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | 1.75 |
| Owners | 1 | 2 | 1 |
Links
Quick Verdict
- •mmap-io leads with a health score of 66/100, but none of the options score above 80.
- •psx-shm has the most downloads (9.8K), suggesting wider adoption.
- •⚠ ration has not been updated in over a year.
- •ration, psx-shm are pre-1.0 — API may change.