Linux Kills Ancient x86 Fallbacks
unknownuniverse.uk
As Linux 7.2 makes the Time Stamp Counter mandatory, we look at why dropping legacy x86 fallback timing code is long overdue.

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?

  • mabeledo@lemmy.world
    1·
    22 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.