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Why is Ruby, and Ruby on Rails (1.8.6 One Click Installer, local database) so ruddy slow on Windows?
Yet, when I pop over to a much slower linux box, it’s virtually instantaneous. I’ve checked everything – no significant CPU processes running, no network issues… and so on.
Heck, I’d be happy with just a verbose output that at least told me where it was breaking down. Any suggestions?
In general Ruby’s MRI interpreter is just not optimized for speed on windows. You might also be running it in development mode on windows vs production mode on the other machines. Rails runs much slower in development mode since it reloads all your classes on every request.
1.8.6 is a very old ruby version. Released almost 3 years ago. You should strongly consider upgrading to 1.9 (or at least 1.8.7). Or switching to JRuby. All of these options will likely lead to a significant performance improvement.
1.8.7 should be fully compatible with 1.8.6. 1.9 has a completely new interpreter that runs 2.5 times faster (Though it has a tendency to occasionally crash on windows). JRuby may be the ideal solution for you since you can run it in either compatibility for 1.8 or 1.9 and it is very stable, but it does not support gems with C extensions and requires a different database adapter.
One last option would be to try running Rails inside of a VMWare with CentOS or another Linux distribution.