Decision Workspace
shm-primitives vs bcast vs memlink-shm
Side-by-side comparison of Rust crates
63
shm-primitives
experimentalv7.3.0
Lock-free primitives for shared memory IPC: BipBuffer, slot metadata, and OS-level doorbell/mmap
59
bcast
growingv0.0.28
Low latency broadcast (SPMC) buffer designed to work with shared memory.
56
memlink-shm
experimentalv0.1.3
High-performance shared memory IPC library with multi-priority messaging and lock-free ring buffers
Core Metrics
| shm-primitives | bcast | memlink-shm | |
|---|---|---|---|
| Health Score | 63 | 59 | 56 |
| Total Downloads | 931 | 18.2K | 44 |
| 30d Downloads | 392 | 178 | 44 |
| Dependents | 18 | 0 | 1 |
| Releases | 11 | 28 | 4 |
| Last Updated | 4d ago | 23d ago | 6d ago |
| Age | 3m | 1y 4m | 6d |
Health Breakdown
shm-primitives
Maintenance
19
Quality
16
Community
9
Popularity
4
Documentation
15
bcast
Maintenance
18
Quality
15
Community
6
Popularity
5
Documentation
15
memlink-shm
Maintenance
19
Quality
13
Community
7
Popularity
2
Documentation
15
Technical Details
| shm-primitives | bcast | memlink-shm | |
|---|---|---|---|
| Version | 7.3.0 | 0.0.28 | 0.1.3 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT | Apache-2.0 |
| Dependencies | 4 | 9 | 6 |
| Crate Size | 39KB | 22KB | 28KB |
| Features | 1 | 2 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | 1.91 | 1.88.0 | 1.70 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •shm-primitives leads with a health score of 63/100, but none of the options score above 80.
- •bcast has the most downloads (18.2K), suggesting wider adoption.
- •bcast, memlink-shm are pre-1.0 — API may change.