Help me about Tool for Test Performance in ROR

I try to do with Test Performance with Rails.I read http://guides.rubyonrails.org/performance_testing.html and in output of it not have much information about system. I heart Rails logger or Rails analyzer can show more information. Could you instruct for me tools test Performance in ROR? Thanks

haxuan lac wrote in post #1103299:

I try to do with Test Performance with Rails.I read http://guides.rubyonrails.org/performance_testing.html and in output of it not have much information about system. I want Test Performance can show: - response time per one request - how many requests can be available for one server I heart Rails logger or Rails analyzer can show more information. Could you instruct for me tools test Performance in ROR? Thanks