Talk: high performance JS

[sidorares]

lessons I learnt making node-mysql2 ~5 times faster than node-mysql ( https://gist.github.com/sidorares/ffe9ee9c423f763e3b6b )

I'll go from usual list of suspects re performance optimisation, we'll discuss "user space JIT" (generating optimised js from js) and also discuss set of good performance habits vs premature optimisations ( + also demo of perf analysis tools - node-tick, inspecting V8.log in devtools , inspecting heapdumps )