super neat overview of jvm profiling features!! the jvm may not seem "close to the metal" like c++, but it also provides a structure that you can profile and optimize at a very deep level. lots of hand-waving over details but the epiphanies are well-described! https://netflixtechblog.com/seeing-through-hardware-counters-a-journey-to-threefold-performance-increase-2721924a2822 via @igb
