any chance of newer rubies ?

[ivar]

2.3.0 is out and the 2.2.X series has been updated a few times.. it would be awesome to have some performance numbers for these.

[brianhempel]

I'll see if I can get my box back up and running after the next time I visit the place where it is stored. I was forced to upgrade it to Yosemite, which caused a large performance regression—seemingly to do with network address resolution. Maybe that's been fixed. In the mean time, you might look at RubyBench.