Can confirm, I used this backport https://twitter.com/hone02/status/512254413000695808 codetriage.com memory usage dropped by about 200mb, saw my request time drop and CPU load drop. Freaking amazing <3 <3 <3
Won't this put more weight in the "long tail" of response times for server applications, since the occasional full GC would stop the world after a thread or process had accepted a request and begun processing? Are there any response-time numbers for Rails sites in-the-wild running 2.1.3 vs. 2.1.2?
Stock Ruby 2.1 was unusable on heroku because of this issue.
https://bugs.ruby-lang.org/issues/9607