Linux 7.2 finally cuts off ancient x86 fallback code

>Linux 7.2 has landed, dragging x86 timing clean out of the nineties by making the Time Stamp Counter mandatory. > >I wrote up a quick article on why ditching those ancient legacy fallbacks is good housekeeping, plus a few other bits like cache-aware scheduling and memory tweaks worth noting. > >Is anyone still using legacy hardware? If so, what do you use it for?