These days, while testing my personal Ruby on Rails project I’m currently working on, I realized how slow Dreamhost’s FCGI Rails support is. So after intensive search for answers I had to contact Dreamhost support team. I wrote them about the problem and today they replayed to my email:
I apologize for the slowness with our FCGI and rails. This is actually one of the reasons we worked with the Phusion to get passenge (mod_rails) working on our servers, passenger is faster, better and stronger than FCGI rails implementation. I would highly recommend you try your application with passenger (mod_rails) instead of fastCGI, this should substantially increase the speed of your site.And they were right.
To enable passanger, just access dreamhost panel and check “Ruby on Rails Passenger (mod_rails)?”. This way your Ruby on Rails app. should get more speed.