Decision Workspace
shmfeeder vs shm-primitives vs bcast
Side-by-side comparison of Rust crates
46
shmfeeder
experimentalv0.2.0
A lock-free single-producer, multi-consumer broadcast ring buffer backed by POSIX shared memory.
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
| shmfeeder | shm-primitives | bcast | |
|---|---|---|---|
| Health Score | 46 | 60 | 59 |
| Total Downloads | 34 | 1.7K | 18.8K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 26 | 0 |
| Releases | 2 | 15 | 31 |
| Last Updated | 78d ago | 105d ago | 12d ago |
| Age | 2m | 6m | 1y 7m |
Health Breakdown
shmfeeder
Maintenance
10
Quality
16
Community
6
Popularity
2
Documentation
12
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
| shmfeeder | shm-primitives | bcast | |
|---|---|---|---|
| Version | 0.2.0 | 7.3.0 | 0.0.29 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT |
| Dependencies | 1 | 4 | 9 |
| Crate Size | 20KB | 39KB | 25KB |
| Features | 3 | 1 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.85 | 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.
- •shmfeeder, bcast are pre-1.0 — API may change.