Decision Workspace
shmring vs shm-primitives vs bcast
Side-by-side comparison of Rust crates
45
shmring
experimentalv0.3.0
Fixed-capacity, single-producer/single-consumer byte ring buffer over shared memory (same wire format as the Go and JS implementations)
60
shm-primitives
growingv7.3.0
Lock-free primitives for shared memory IPC: BipBuffer, slot metadata, and OS-level doorbell/mmap
59
bcast
growingv0.0.29
Low latency broadcast (SPMC) buffer designed to work with shared memory.
Core Metrics
| shmring | shm-primitives | bcast | |
|---|---|---|---|
| Health Score | 45 | 60 | 59 |
| Total Downloads | 48 | 1.7K | 18.8K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 26 | 0 |
| Releases | 3 | 15 | 31 |
| Last Updated | 2d ago | 105d ago | 12d ago |
| Age | 3d | 6m | 1y 7m |
Health Breakdown
shmring
Maintenance
14
Quality
13
Community
6
Popularity
2
Documentation
10
shm-primitives
Maintenance
14
Quality
17
Community
10
Popularity
4
Documentation
15
bcast
Maintenance
18
Quality
15
Community
6
Popularity
5
Documentation
15
Technical Details
| shmring | shm-primitives | bcast | |
|---|---|---|---|
| Version | 0.3.0 | 7.3.0 | 0.0.29 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | MIT OR Apache-2.0 | MIT |
| Dependencies | 5 | 4 | 9 |
| Crate Size | 23KB | 39KB | 25KB |
| Features | 0 | 1 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | — | 1.91 | 1.88.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •shm-primitives leads with a health score of 60/100, but none of the options score above 80.
- •bcast has the most downloads (18.8K), suggesting wider adoption.
- •shmring, bcast are pre-1.0 — API may change.