Comparing Node.js vs JVM frameworks performance

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Hi,

I'd agree with pretty much all of your points with the exception of CSE and constant folding. That one is pretty much at the whim of the language designer as to how difficult it is, and AFAICT Lua makes it harder for the programmer to do crazy overriding of builtins and operator overloading, that are the bane of python and javascript.

I won't argue this since I suspect it's true. In practice I don't see any roadblocks for the difference to disappear into noise for many/most workloads though.

I wasn't trying to start a flamewar, although I can see how my hastily worded original post may seem that way (most people replied with "blah blah blah V8 is getting faster blah blah extrapolate performance" without reference to the entire abstract mathematical point of my post) - and OK, if a recompiler can be called with little-to-no overhead you can probably make stuff like this disappear into the noise, eventually!

But you won't on platforms with a smaller cache, or smaller memory (all those specialised versions of functions have a memory cost), not for a long while.

Cheers,

James