# Rails incredibly slow? **URL:** \ **Category:** Ruby\ **Created:** [November 14, 2007, 5:01am UTC](https://www.ruby-forum.com/t/rails-incredibly-slow/120149 "2007-11-14T05:01:03Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![rjeffries](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e495f1/32.png) [@rjeffries](https://www.ruby-forum.com/u/rjeffries)\ **Post date:** [November 14, 2007, 5:01am UTC](https://www.ruby-forum.com/t/rails-incredibly-slow/120149/1 "2007-11-14T05:01:03Z")
Chet and I installed Instant Rails on our laptops. My laptop is faster than his and has more memory. But his rails is working and mine is infinitely slow. I’ll dump what I know here in hopes that something in it is helpful. Looking for ideas and things to try. On his laptop doing things like ruby script/generate controller foo will take maybe 20 seconds. on my laptop it takes four or five MINUTES. on my machine ruby -v comes back instantly. rails -v takes about 25 seconds to come back. (I don’t have that figure for Chet’s machine but I’m hoping that if your machine does it quickly that may serve as a clue. If I browse to rails\_apps and say “rails demo” to create the demo project, it takes 4 minutes to do anything, then spits out the creates vert raoudkt. When I CD to demo and say “ruby script/server” it hangs for eight (8) minutes, then starts saying booting mongrel, rails app starting, …, starting mongrel listening at 0.0.0.0:3000, and starting rails with development environment … (it has not as yet printed the time-stamped lines shown in the Agile Web D. with Rails book. I’ll wait some more … It has been fifteen minutes and it hasn’t said anything beyond the starting rails message. I’ll try the browser. Firefoxhas been waiting for localhost for 20 minutes. Either its very slow or it is hanging somewhere. Ruby is getting about 30 or 40 percent of the CPU. Both cores are running at about that percentage. Explorer, winlogon, and Instant Rails are all getting a bit of CPU from time to time. Ideas? I could sure use one. Thanks! Ron J. [www.XProgramming.com](http://www.XProgramming.com) ---
**Author:** ![rjeffries](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/e495f1/32.png) [@rjeffries](https://www.ruby-forum.com/u/rjeffries)\ **Post date:** [November 14, 2007, 7:45am UTC](https://www.ruby-forum.com/t/rails-incredibly-slow/120149/2 "2007-11-14T07:45:16Z")
On 11/13/07, Ron J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Chet and I installed Instant Rails on our laptops. My laptop is faster > than his and has more memory. But his rails is working and mine is > infinitely slow. I’ll dump what I know here in hopes that something in > it is helpful. Looking for ideas and things to try. Hey Ron, I’m not too familiar with Rails on Windows but have heard similar reports of extreme slowness, none with a definitive resolution. One mention suggests checking that the RUBYOPT environment variable is set to ‘-rubygems’ not ‘rubygems’ (no hyphen), but that may be grasping at straws. You could also check out one of the Rails IDEs, like RadRails, Netbeans, Idea, Komodo, etc, or try jruby 🙂 You can also ask the folks on the Rails mailing list: [http://groups.google.com/group/rubyonrails-talk](http://groups.google.com/group/rubyonrails-talk) Best, jeremy