We'll look at some Node.js patterns that are easy to write, but kill performance. Excessive buffer coalescing and string concatenation waste cycles in your process. Serializing tasks bloats latency and creates pyramids-of-doom in your code. Ignoring the intricacies of v8 hidden classes concedes easy performance boosts. Constructing object graphs that cross generations make garbage collection harder. Come learn a few easy tricks to apply to your code and explore some Node.js performance tools.
