github.com/trungpham/benchmark

1. install the dependencies npm install
2. start the server node server.js
3. start the services PORT=3001 node service.js PORT=3002 node service.js PORT=3003 node service.js
4. run apache benchmark tool ab -n 9000 -c 30 "http://localhost:3000/"

Benchmark scenario: Browser will issue a request to the proxy server. Internally, proxy server will make 3 out bound http calls to 3 different remote services in parallel. Only after those three requests completed, then proxy server can response back to the browser.

Result: Sending 9000 requests directly to the service: 60.6s Sending 9000 requests through the proxy: NodeJS: +8s Go: +30s Java+Play2: +0s Java+Rhino+Vertx: 0s Java+Jruby+Vertx: 0.5s