I\'m using rails Version 3.0.3 and ruby Version 1.9.2p136 (2010-12-15) on a Intel Core 2 Duo 2,6 Ghz with 4 GB Ram and Windows Vista Business SP2 with no other (heavy) appli
you can try playing with ruby's garbage collecter to make ruby faster, since the defaults variable settings don't match how windows work
also Garbage collector performance tuning