Microcode handles the stateful, multi-step operations -- stack switches, descriptor loading, V86 frame management -- that are too irregular for fixed hardware.
For implementers, backpressure adds complexity without providing guarantees. The machinery to track queue sizes, compute desiredSize, and invoke pull() at the right times must all be implemented correctly. However, since these signals are advisory, all that work doesn't actually prevent the problems backpressure is supposed to solve.
。关于这个话题，WPS下载最新地址提供了深入分析
Your computer is a cosmic ray detector. Literally.
But other stuff…? It was just goofing off: