Hello, if you''re currently using OobGC on 1.9.2, please try the latest ruby_1_9_3 branch and report back. Do NOT test the 1.9.3preview1 release, there was a GC performance regression fixed since 1.9.3preview1. I''m curious to know if OobGC still helps with the new lazy-sweep GC in 1.9.3. If OobGC still helps your app, I expect it to help less than it did with 1.9.2. I''ll understand if you''re concerned about stability, but fwiw, I''m happier with Ruby 1.9.3 than I am with 1.9.2. Obviously, please report any 1.9.3 bugs you find to ruby-core. -- Eric Wong