Benchmarks: Vapor 2 vs. Vapor 1

After migrating my pet project from Vapor 1 to Vapor 2 I've run benchmarks to compare performance. I didn't run benchmarks for the last version of Vapor 1.x which is 1.5.15 so I will compare Vapor 2.1.0 to results of Vapor 1.2.5 that I have from my last results.

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 3.1.1.

Total requests


Requests per second


Average Latency


Memory usage


Vapor 2 is about 14-15% faster than Vapor 1.2.5. And what's important - Vapor 1.2.5 grew after benchmarks from 13.4 mb to 59.1 mb and Vapor 2 started with just 3.6 mb and grew to 5.3 mb. That's very impressive.

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