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Re:Ruby 1.9, massive boost in threading preformance by swombat on Tuesday July 29, 2008 @10:19AM (#260496)
it seems that the old 'Ruby use -> slowness' implication no longer holds.

That's a fallacy in the first place (at least for web apps)... Most web application code spends most of its time waiting for the db to respond, not number-crunching.

Re:Ruby 1.9, massive boost in threading preformance by marijn on Tuesday July 29, 2008 @11:27AM (#260600)
That does not mean performance is irrelevant, does it? Heavily used web apps benefit a lot from a fast runtime (it allows you to push the point where you have to split across servers forward quite a bit), and being able to do CPU-intensive stuff in the same environment when you need to instead of having to bust out the C or Java or whatever is very pleasant.
Re:Ruby 1.9, massive boost in threading preformance by ovi256 on Wednesday July 30, 2008 @04:24PM (#262241)
You can do CPU-intensive tasks using a general purpose Python API with SciPy/NumPy. Yes, it's implemented in C.
Re:Ruby 1.9, massive boost in threading preformance by simonw on Tuesday July 29, 2008 @11:00AM (#260552)
Actually I've heard of a number of Rails apps that are CPU bound rather than being IO bound, and that's with the database hosted on a separate server.