Pure ruby in JRuby: 25.7s
"Compiled" in JRuby: 8.8s
Pure ruby in Ruby: 2.0s
Pure Java: 0.014s
- However, even when interpretation is removed from the equation, we're still over four times slower than Ruby. That's not good.
It's a good bump, but like you say, still slow. Where do you suspect we're losing so much performance? String manipulation and unnecessary object creation?
A fascinating comparison, nonetheless. That pure java number is such a tease when considering that we'll never really get there.
Somewhat offtopic, I wonder how INVOKEDYNAMIC would help in this case -- with the JVM potentially becoming open source soon, I would think it would be a lot easier to get a hold of an early-access patch and compile your own VM. What do you see needing to change in the current interpreter infrastructure to be able to take advantage of it?
/Nick
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