Slow action in Rails application: ActionDispatch::Routing::RouteSet#call

Question

According to NewRelic the slowest transaction in my application is:

Middleware/Rack/ActionDispatch::Routing::RouteSet#call

It takes

Answer 1

If by any chance you are using the "Treat" gem, remove it. Seems like a bug.

https://github.com/louismullie/treat/issues/84