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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 3 points 2 days ago (1 children)

Emulation support doesn’t imply full ABI or driver support.

Otherwise, since Proton is supported for Linux but not BSD, Linux would still be ahead.

[–] Anti_Iridium@lemmy.world 1 points 1 day ago (1 children)

It's much deeper than emulation like you would a PlayStation. Last time I checked you could run steam and proton on FreeBSD

[–] mabeledo@lemmy.world 2 points 1 day ago

I know how it works. My point is that, if emulated software, be under a hypervisor or an ABI compatibility layer, is considered “supported”, then we could say that Windows applications are supported in Linux, but that’s not entirely true.

More importantly, if I want to run Linux software, I would rather run it on Linux, e.g. Docker and Kubernetes.