Decision Workspace
qanat vs flume vs concurrent-queue
Side-by-side comparison of Rust crates
40
qanat
experimentalv0.2.0
Lock-free channels specially written for asynchronous contexts
67
flume
growingv0.12.0
A blazingly fast multi-producer channel
60
concurrent-queue
growingv2.5.0
Concurrent multi-producer multi-consumer queue
Core Metrics
| qanat | flume | concurrent-queue | |
|---|---|---|---|
| Health Score | 40 | 67 | 60 |
| Total Downloads | 15 | 142.0M | 208.7M |
| 30d Downloads | 5 | 12.3M | 15.4M |
| Dependents | 0 | 8.9K | 1.0K |
| Releases | 1 | 39 | 16 |
| Last Updated | 30d ago | 109d ago | 700d ago |
| Age | 1m | 6y 8m | 5y 10m |
Health Breakdown
qanat
Maintenance
11
Quality
12
Community
6
Popularity
1
Documentation
10
flume
Maintenance
12
Quality
15
Community
20
Popularity
8
Documentation
12
concurrent-queue
Maintenance
4
Quality
18
Community
18
Popularity
8
Documentation
12
Technical Details
| qanat | flume | concurrent-queue | |
|---|---|---|---|
| Version | 0.2.0 | 0.12.0 | 2.5.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 | Apache-2.0/MIT | Apache-2.0 OR MIT |
| Dependencies | 8 | 13 | 7 |
| Crate Size | 27KB | 69KB | 23KB |
| Features | 0 | 5 | 2 |
| Yanked % | 0.0% | 2.6% | 6.3% |
| Edition | 2024 | 2018 | 2021 |
| MSRV | — | — | 1.60 |
| Owners | 1 | 2 (team) | 3 (team) |
Links
Quick Verdict
- •flume leads with a health score of 67/100, but none of the options score above 80.
- •concurrent-queue has the most downloads (208.7M), suggesting wider adoption.
- •flume is depended on by 8.9K crates — strongest ecosystem trust.
- •⚠ concurrent-queue has not been updated in over a year.
- •qanat, flume are pre-1.0 — API may change.