Decision Workspace
xchannel vs crossbar vs callosum
Side-by-side comparison of Rust crates
47
xchannel
experimentalv2.0.0
mmap-backed IPC channels with regionized layout, alignment-safe headers, and file rolling.
51
crossbar
experimentalv1.2.0
Zero-copy pub/sub over shared memory. URI-addressed. O(1) transfer at any payload size.
40
callosum
experimentalv0.1.0
Zero-copy shared memory IPC for Rust
Core Metrics
| xchannel | crossbar | callosum | |
|---|---|---|---|
| Health Score | 47 | 51 | 40 |
| Total Downloads | 349 | 100 | 39 |
| 30d Downloads | 56 | 101 | 3 |
| Dependents | 0 | 0 | 0 |
| Releases | 6 | 9 | 1 |
| Last Updated | 18d ago | 2d ago | 112d ago |
| Age | 4m | 8d | 3m |
Health Breakdown
xchannel
Maintenance
18
Quality
10
Community
6
Popularity
3
Documentation
10
crossbar
Maintenance
16
Quality
15
Community
6
Popularity
2
Documentation
12
callosum
Maintenance
7
Quality
13
Community
6
Popularity
2
Documentation
12
Technical Details
| xchannel | crossbar | callosum | |
|---|---|---|---|
| Version | 2.0.0 | 1.2.0 | 0.1.0 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 5 | 4 | 6 |
| Crate Size | 27KB | 118KB | 20KB |
| Features | 0 | 1 | 0 |
| Yanked % | 50.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.87 | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •crossbar leads with a health score of 51/100, but none of the options score above 80.
- •xchannel has the most downloads (349), suggesting wider adoption.
- •callosum is pre-1.0 — API may change.