Decision Workspace
slotbus-hub vs shm-primitives vs bcast
Side-by-side comparison of Rust crates
42
slotbus-hub
experimentalv0.1.0
HTTP-to-SHM router. Workers register routes, clients send HTTP — slotbus-hub dispatches via shared memory with sub-millisecond round trips.
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.
Core Metrics
| slotbus-hub | shm-primitives | bcast | |
|---|---|---|---|
| Health Score | 42 | 63 | 59 |
| Total Downloads | 15 | 931 | 18.2K |
| 30d Downloads | 3 | 387 | 169 |
| Dependents | 0 | 18 | 0 |
| Releases | 1 | 11 | 28 |
| Last Updated | 39d ago | 4d ago | 23d ago |
| Age | 1m | 3m | 1y 4m |
Health Breakdown
slotbus-hub
Maintenance
11
Quality
12
Community
6
Popularity
1
Documentation
12
shm-primitives
Maintenance
19
Quality
16
Community
9
Popularity
4
Documentation
15
bcast
Maintenance
18
Quality
15
Community
6
Popularity
5
Documentation
15
Technical Details
| slotbus-hub | shm-primitives | bcast | |
|---|---|---|---|
| Version | 0.1.0 | 7.3.0 | 0.0.28 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | MIT OR Apache-2.0 | MIT |
| Dependencies | 12 | 4 | 9 |
| Crate Size | 37KB | 39KB | 22KB |
| Features | 0 | 1 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.75 | 1.91 | 1.88.0 |
| 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.
- •slotbus-hub, bcast are pre-1.0 — API may change.