this post was submitted on 19 Aug 2026
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Linux 7.2 finally cuts off ancient x86 fallback code (unknownuniverse.uk)
submitted 5 days ago by cm0002@literature.cafe to c/linux@programming.dev
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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?

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[–] Kazumara@discuss.tchncs.de 3 points 4 days ago

Old news, this was clear in June: https://www.phoronix.com/news/Linux-Kernel-TSC-Unconditional