On Aug 14, 2013, at 10:02 AM, Alexander Shorin <[email protected]> wrote:

> Erlang server bypassed stdio interface communication and addtional
> JSON decode/encode roundtrip, so it is faster than JS at some point.

Yeah — the ironic thing is that state-of-the-art JS runtimes are probably 
faster than Erlang* these days, but JS views are still going to be slower 
because (a) they run in a separate process, and (b) the docs have to be 
translated from Erlang terms into JS objects. My experience from working 
inter-language bridges is that parameter marshaling is generally a performance 
killer.

FWIW, Couchbase Server 2.0 uses V8 instead of SpiderMonkey and runs it 
in-process; both those changes really help performance.

—Jens

* Not intending to start a language-performance flame war! But Erlang’s 
interpreter is quite primitive by today’s standards: it doesn’t even have a JIT.

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