DataObjects in production tips

MRI

Jruby

server / client mode

Java and Jruby offer two modes of running applications. Client mode should be used only in prototyping. In other cases server mode is preferred. Adding “—server” parameter turns on additional optimizations in JVM and performance in long-life applications should be better than using default (“—client”) mode.

Running specs using server mode:

jruby --server -S rake spec 

Sample performance comparison of using client and server modes