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Benchmarks: Vapor 3 vs. Vapor 2

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:

  • 2 GB RAM
  • 1 CPU Core
  • SSD
  • 125 MBPS Out
  • Ubuntu 16.04.2 LTS
  • CouchDB

Benchmark from other server was launched as:

wrk -t4 -c20 -d5m https://my_url

API just gets some data from CouchDB and returns it as JSON. Vapor project was compiled with Swift 4.2.

Total requests

 

Requests per second

 

Average Latency

 

Memory usage

 

Vapor 3 was rewriten and now it's based on Apple's NIO. It's faster than Vapor 2 but using 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

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