After migrating (almost rewriting) my small project from Vapor 2 to Vapor 3 I've run benchmarks to compare performance. I didn't run benchmarks for the last version of Vapor 2.x so I will compare Vapor 2.1.0 to results of Vapor 3.1.0.
My server configuration:
- 2 GB RAM
- 1 CPU Core
- SSD
- 125 MBPS Out
- Ubuntu 16.04.2 LTS
- CouchDB
Benchmark from other server has been launched as:
wrk -t4 -c20 -d5m https://my_urlAPI just gets some data from CouchDB and returns it as JSON. Vapor project has been compiled with Swift 4.2.
Total requests
Requests per second
Average Latency
Memory usage
Vapor 3 has been rewritten and now it's based on Apple's NIO. It's faster than Vapor 2 but uses more memory which is not critical.
Previous benchmarks:
Benchmarks: Vapor 2 vs. Vapor 1
Benchmarks for Vapor 1.2.5
Swift Backend with CouchDB: Kitura vs. Vapor vs. Node.js