(Replying to PARENT post)

One thing that wasn't touched was JRuby[1], on their site they state high performance and real threading as advantages.

If twitter has (some of) the best ruby developer (mentioned somewhere at the end of the video), why have they neglected JRuby? Why is it no option? For legacy code with native extensions this makes sense. But is jruby slower, more memory hungry on the JVM then scala or clojure? I always though that JRuby was one of the more performant languages on the JVM?

Apart from that it was an interesting talk.

[1]: http://www.jruby.org/

👤angerman🕑14y🔼0🗨️0

(Replying to PARENT post)

JRuby is fast for a Ruby implementation, but it's still far, far slower than Scala or Java itself.

http://shootout.alioth.debian.org/u32/benchmark.php?test=all...

👤cageface🕑14y🔼0🗨️0

(Replying to PARENT post)

I recall reading an interview with Evan Weaver that the problem with moving to JRuby was in client libraries they were using, not JRuby itself.

👤jefft🕑14y🔼0🗨️0