Decision Workspace
shm-primitives-async vs xrpc-rs vs callosum
Side-by-side comparison of Rust crates
55
shm-primitives-async
experimentalv7.3.0
Async OS-level control primitives for shared memory IPC (doorbell and mmap control)
48
xrpc-rs
experimentalv0.2.2
async RPC library optimized for shared memory communication
40
callosum
experimentalv0.1.0
Zero-copy shared memory IPC for Rust
Core Metrics
| shm-primitives-async | xrpc-rs | callosum | |
|---|---|---|---|
| Health Score | 55 | 48 | 40 |
| Total Downloads | 275 | 399 | 39 |
| 30d Downloads | 276 | 36 | 3 |
| Dependents | 8 | 1 | 0 |
| Releases | 9 | 16 | 1 |
| Last Updated | 4d ago | 40d ago | 112d ago |
| Age | 24d | 4m | 3m |
Health Breakdown
shm-primitives-async
Maintenance
13
Quality
15
Community
9
Popularity
3
Documentation
15
xrpc-rs
Maintenance
17
Quality
14
Community
4
Popularity
3
Documentation
10
callosum
Maintenance
7
Quality
13
Community
6
Popularity
2
Documentation
12
Technical Details
| shm-primitives-async | xrpc-rs | callosum | |
|---|---|---|---|
| Version | 7.3.0 | 0.2.2 | 0.1.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT OR Apache-2.0 |
| Dependencies | 7 | 19 | 6 |
| Crate Size | 24KB | 53KB | 20KB |
| Features | 0 | 5 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.91 | — | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •shm-primitives-async leads with a health score of 55/100, but none of the options score above 80.
- •xrpc-rs has the most downloads (399), suggesting wider adoption.
- •xrpc-rs, callosum are pre-1.0 — API may change.