Which Ruby Implementation?

I know that there are other “unofficial” Ruby implementations, like
Rubinius, jRuby, etc.

What are the advantages of one implementation over another? How do I
know which one is the most suitable for me?

On Fri, Sep 28, 2012 at 7:50 AM, Aytug G. [email protected] wrote:

I know that there are other “unofficial” Ruby implementations, like
Rubinius, jRuby, etc.

What are the advantages of one implementation over another? How do I
know which one is the most suitable for me?

JRuby has the advantages and disadvantages of the JVM.

Advantages:

  • Best GC available for Ruby
  • Optimizing native JIT
  • Solid concurrency (parallel threads) and memory model
  • Vast array of languages and libraries usable from Ruby
  • Wide platform support (including GUI libraries)

Disadvantages:

  • Slow startup/warmup
  • Native features are often underimplemented (JVM hides most POSIX from
    us)
  • No Ruby C extensions

And of course JRuby is still “chasing” compatibility with MRI, but
we’re rapidly narrowing the gap.

  • Charlie

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