It's probably not intentional but his benchmark graphs are misleading.

Because Mono is not nearly as fast or as mature as Microsoft's .NET, the
performance of IronRuby on mono is much worse. Unfortunately all his graphs
show Mono performance only, which makes IronRuby appear very slow.

If you look at the numbers directly (there is a table further down comparing
IronRuby on mono vs IronRuby on .net), IronRuby is much much faster. It
appears to me that IronRuby on windows (.NET) is faster than MRI 1.9.2
("regular" ruby) on windows!

It's still not as fast as MRI 1.9.2 on linux, but it's not that far behind
either.

On Thu, Jul 29, 2010 at 2:58 PM, Ray Linn <li...@ruby-forum.com> wrote:

> IBM Engineer completed a performance benchmark for rubys, seems ir does
> not well done in the performance.
>
>
> http://programmingzen.com/2010/07/19/the-great-ruby-shootout-july-2010/
> --
> Posted via http://www.ruby-forum.com/.
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> Ironruby-core@rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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