Web performance tests using wrk Results of concurrency level of 100, on Thinkpad X200, 8GB RAM, Ubuntu 14.04: Language / Framework Requests per Second Latency (ms, Avg / Stdev / Max) Transfer Rate Golang / stdlib net/http 22136 82 / 133 / 1090 2.70 MB/s Elixir / Plug + Cowboy 14793 11 / 14 / 164 2.78 MB/s Elixir / Phoenix (Cowboy) 2961 32 / 12 / 104 0.71 MB/s Ruby / Sinatra + Puma 1717 9 / 8 / 77 0.31 MB/s Java / Spring Boot + Tomcat 11453 13 / 18 / 232 1.38 MB/s Groovy / Spring Boot + Tomcat 10938 14 / 19 / 227 1.32 MB/s Details Results of concurrency level from 10 to 1000. Data: latency, req/sec Language / Framework c2 c10 c20 c100 c1000 Go / stdlib 0.16, 21020 7, 21564 10, 21577 19, 21031 154, 20540 Elixir / Plug+Cowboy 0.22, 8853 1, 14685 2, 14658 12, 13946 48, 13136