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Linux 7.2 finally cuts off ancient x86 fallback code (unknownuniverse.uk)

submitted 3 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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[–] mabeledo@lemmy.world 1 points 16 hours ago

Don’t be ridiculous.

Virtually every SaaS platform runs on Linux. Half of the embedded devices out there run on Linux. 70% of cellphones run on Linux. Essentially, there is no way you would be online without interacting with a Linux-based OS in one way or another.

Even compared to FreeBSD, NetBSD is more of a niche OS for hobbyists.