Should add a license...

Maybe ISC?

When number of routes increase, router performance drops linearly (still amazing, though : ).

Generate routes.

# ruby
s = (1..1000).to_a.map { |e| %Q(get "/#{e}" { "hello" } ) }.join("\n")
File.write('frank_router_performance.cr', s)

Run the app.

Test performace

 wrk -c100 -t 2 -d 10s http://127.0.0.1:3000/1
 wrk -c100 -t 2 -d 10s http://127.0.0.1:3000/100
 wrk -c100 -t 2 -d 10s http://127.0.0.1:3000/500
 wrk -c100 -t 2 -d 10s http://127.0.0.1:3000/1000

Linear drop of performance. Because of @routes = [] of Route ?

I don't think it's an issue in production, most app only have several routes.

Just noticed that frank does not show the response times in the log. It would be nice if it did, don't you think so?