Ruby / Rails garbage collection

Question

Since http is stateless, every request to an app creates a new object. How does Rails clean up the unused objects / how frequently?

Answer 1

If you are interested in this you should check out the blog series about copy-on-write garbage collection by the Phusion team and their efforts to improve on the default ruby gc scheme in Ruby Enterprise Edition.

http://izumi.plan99.net/blog/index.php/2007/04/05/saving-memory-in-ruby-on-rails/

Other links in the series here:

http://www.rubyenterpriseedition.com/faq.html