look at this link. is in Portuguese, but not it's impossible to understand. :)
http://rrmartins.github.com/blog/2012/09/10/reflexao-e-metaprogramacao-objectspace-e-gc-number-ruby-1-dot-9-part-vii/ -- * Atenciosamente* ___________________________ Rodrigo Martins www.rrmartins.com <http://rrmartins.github.com> tel: (28) 9882-6202 (27) 9601-9573 (21) 9942-2016 My profiles: [image: Facebook] <http://pt-br.facebook.com/rr.martins.j> [image: Twitter] <http://www.twitter.com/rr_martins> Contact me: [image: Google Talk/] rodr...@rrmartins.com [image: Skype/]rr_martinsj [image: MSN/] rodr...@rrmartins.com 2012/9/26 Robert Walker <li...@ruby-forum.com> > venkata reddy wrote in post #1077609: > > Had any one run into performance issues after upgrading to ruby 1.9.3. > > My application was working fine until it was on REE but after up > > gradation it seems to be too slow. One of the reasons could be > > Garbage collection with ruby, having said that i don't have much idea > > on how to tune it. It might not be the only thing that caused the > > performance issue but i think that is a significant change between REE > > and 1.9.3. > > What's the rest of the story? > > - What operating system and version are you running? > - What version of Rails are you running? Assuming you're using Rails? > - Are you seeing the problem in development mode or production mode? > - What leads to to believe garbage collection has anything to do with > your problem? > - Have you collected performance metrics that lead you to suspect the > GC? > > Generally speaking Ruby 1.9.3 is significantly faster than Ruby 1.8.x, > including REE. I also really doubt the garbage collector has anything to > do with your problem. > > Whenever I hear about noticeable performance drops after an upgrade it > generally leads back to something basic, like the OS. For example I, as > do many others, recommend running Ruby on some form of UNIX based OS > (BSD, Linux, Mac, etc.). > > -- > Posted via http://www.ruby-forum.com/. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk@googlegroups.com. > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
