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#hyperthreading

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Replied to R.L. Dane :Debian: :OpenBSD: 🍵 :MiraLovesYou:
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Dendrobatus Azureus

@rl_dane
Have you noticed, my internet friend, that Intel has enshittified themself to such a level that they are becoming useless?

I didn't buy a new machine after AMD started slacking off for more than 10 years {I think it's 12}

The most obvious reason was that Intel had the capability to create CPUs which had as much cores that are as efficient as AMD but they just wanted to kill everyone by always releasing a new chipset just so you could use another iteration of the CPU.

The moment AMD got their act together and started to make very good CPUs again Intel tried to play catch up, ketchup even

Now their founderies are out of date to obsolete and AMD which sends their work to Modern foundries has jumped over into and is almost literally p*ssing on them

I really hope that you do not have those Intel CPUs in your systems which just basically disintegrate while they are being used. They are of the latest generation

#HyperThreading#hardware#CPU
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LisPi

You know, I think the #OpenBSD and #QubesOS folks have the right idea regarding #hyperthreading.

The last few major hardware vulnerabilities all had it as a pretty central part of exploitation.

Is the slight gain in performance worth the #security tradeoff? I don't think so.

For Qubes, it's possible to ensure only threads from the same #Xen VM/trust-domain run collocated on a core, but for more conventional OSes, that's much harder to guarantee.

ClaudioM

Yeesh. I know in the BSDs you can tell sysctl to enable it temporarily (I assume it's also possible on Linux but haven't looked further), but I wonder if that's possible in Windows which I assume is what the tests were done on. #spectre #meltdown #zombieload

How Screwed is #Intel without #HyperThreading? - TechSpot
techspot.com/article/1850-how-

www.techspot.comHow Screwed is Intel without Hyper-Threading?Today we're exploring the impact disabling Hyper-Threading has on Intel processors. We've done this in the past and it's an interesting test, however there are new incentives to check this out due to the newly discovered side-channel vulnerabilities affecting Intel processors and their impact on Hyper-Threading.
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