On Dec 1, 2010, at 2:15 PM, Laurent Sansonetti wrote: >> http://swtch.com/~rsc/regexp/regexp1.html > > MacRuby is using ICU. I'm not aware of ICU's internals, but I suspect the > performance issue is probably elsewhere here, given the huge difference > against 1.8.
It would be instructive to try and reduce this case somewhat, just in case that's true. At the very least, it would be interesting to compile MacRuby with profiling enabled, run the test, and then see where all the hotspot calls were. Do we have an easy way of doing that with the existing rakefiles? - Jordan
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