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Application logic is not free.

The article mentions that using NodeJS as a simple HTTP proxy with no application logic can sustain only 2100 reqs/s before a 2.5GHz Xeon is maxed out. NodeJS uses CPU more efficiently than other HTTP stacks, but its I/O engine is not infinitely scalable.

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>> "The article mentions that using NodeJS as a simple HTTP proxy with no application logic can sustain only 2100 reqs/s before a 2.5GHz Xeon is maxed out."

That sounds fairly lame to me. Proxying network traffic isn't a CPU heavy operation. Worst case you have to move a few bits of memory around.

Thats specious, you really have to know what you're proxying, and squid and varnish supposedly get much less throughput. (Google around http://deserialized.com/reverse-proxy-performance-varnish-vs... ) "Moving bits" in memory is not a measure of anything.

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