Do you have anything you can point at regarding String performance? Everything I've seen shows JRuby being faster than MRI. But I'm looking to see if we can make it even faster than it currently is. Any pathological cases would be incredibly helpful.
I can send you an example. Can I drop you an email? I think also that we are friends on linkedin, coincidentally. I can message you there (if that is a useful way to get in touch?).