From: Austin Ziegler Date: 2011-10-18T01:30:03+09:00 Subject: Re: Ruby and threading On Mon, Oct 17, 2011 at 2:47 AM, Carter Cheng wrote: > I gather then the 1.9.2. implementation at present does not "exploit" OS > level threads (where as JRuby borrows them from the underlying JVM in some > manner)? You gather incorrectly. Ruby 1.9.2 does use underlying OS threads. For a variety of reasons, however, there is a Global Interpreter Lock as Josh Cheek pointed out to you (and provided this link: http://www.engineyard.com/blog/2011/ruby-concurrency-and-you/). -a -- Austin Ziegler • halostatue@gmail.com • austin@halostatue.ca http://www.halostatue.ca/ • http://twitter.com/halostatue