Decision Workspace
reqsketch vs kll-rs vs cardinality-estimator
Side-by-side comparison of Rust crates
46
reqsketch
experimentalv0.1.1
Relative Error Quantiles sketch
44
kll-rs
experimentalv0.1.4
KLL quantiles sketch from Apache DataSketches for Rust
64
cardinality-estimator
stablev1.0.3
A crate for estimating the cardinality of distinct elements in a stream or dataset.
Core Metrics
| reqsketch | kll-rs | cardinality-estimator | |
|---|---|---|---|
| Health Score | 46 | 44 | 64 |
| Total Downloads | 63 | 1.1K | 914.6K |
| 30d Downloads | 6 | 167 | 84.1K |
| Dependents | 0 | 0 | 48 |
| Releases | 2 | 3 | 4 |
| Last Updated | 97d ago | 210d ago | 45d ago |
| Age | 3m | 7m | 1y 10m |
Health Breakdown
reqsketch
Maintenance
12
Quality
13
Community
6
Popularity
2
Documentation
13
kll-rs
Maintenance
11
Quality
13
Community
6
Popularity
4
Documentation
10
cardinality-estimator
Maintenance
13
Quality
18
Community
13
Popularity
7
Documentation
13
Technical Details
| reqsketch | kll-rs | cardinality-estimator | |
|---|---|---|---|
| Version | 0.1.1 | 0.1.4 | 1.0.3 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 8 | 7 | 14 |
| Crate Size | 219KB | 20KB | 434KB |
| Features | 2 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 2 |
Links
Quick Verdict
- •cardinality-estimator leads with a health score of 64/100, but none of the options score above 80.
- •reqsketch, kll-rs are pre-1.0 — API may change.