Decision Workspace
subms-otel vs zlayer-observability vs opentelemetry-instrumentation-tokio
Side-by-side comparison of Rust crates
50
subms-otel
experimentalv0.6.0
OpenTelemetry bridge for the subms perf-harness - wires Histogram + Span emission from SubMsObserver + SubMsBenchSummary + SubMsTimer. Byte-equivalent to com.submillisecond:subms-otel.
57
zlayer-observability
experimentalv0.14.3
OpenTelemetry tracing and Prometheus metrics for ZLayer
56
opentelemetry-instrumentation-tokio
experimentalv0.2.0
OpenTelemetry instrumentation for Tokio runtime metrics
Core Metrics
| subms-otel | zlayer-observability | opentelemetry-instrumentation-tokio | |
|---|---|---|---|
| Health Score | 50 | 57 | 56 |
| Total Downloads | 34 | 1.2K | 20.1K |
| 30d Downloads | 0 | 0 | 3.0K |
| Dependents | 0 | 41 | 0 |
| Releases | 2 | 66 | 4 |
| Last Updated | 43d ago | 6d ago | 26d ago |
| Age | 1m | 5m | 7m |
Health Breakdown
subms-otel
Maintenance
11
Quality
16
Community
6
Popularity
2
Documentation
15
zlayer-observability
Maintenance
19
Quality
13
Community
9
Popularity
4
Documentation
12
opentelemetry-instrumentation-tokio
Maintenance
16
Quality
16
Community
6
Popularity
5
Documentation
13
Technical Details
| subms-otel | zlayer-observability | opentelemetry-instrumentation-tokio | |
|---|---|---|---|
| Version | 0.6.0 | 0.14.3 | 0.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 6 | 22 | 3 |
| Crate Size | 42KB | 45KB | 14KB |
| Features | 9 | 3 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.85 | 1.85 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •zlayer-observability leads with a health score of 57/100, but none of the options score above 80.
- •opentelemetry-instrumentation-tokio has the most downloads (20.1K), suggesting wider adoption.