Microarchitectures are the new architectures. The game these days is all about finding a way to make your code go fast on the latest and greatest AVX thing, whi

Microarchitectures are the new architectures. The game these days is all about finding a way to make your code go fast on the latest and greatest AVX thing, while still maintaining compatibility for old machines via CPUID. Getting those 10x speedups (sometimes 50x w/ things like crc32 pclmul) is much more fun than caring about things like s390x (i.e. doing IBM's work for them), SH (i.e. folks emulating Sega Saturn on FPGAs for fun), MIPS (hacked home routers), etc.