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So, at what point do we just stop trying to optimize processors?
KISS processors :3
btw, the openBSD fix for such things is to disable hyper threading in the kernel. You can do that too in the bios of your computer.
See: phoronix article and tomshardware post
See also the presentation by Greg Kroah-Hartman
I was wondering if disabling hyperthreading would be effective against this new threat.
i think yes, but am not sure. ask maybe on security.stackexchange.com?
This will be so bad for even 2 year old CPUs. Intel and AMD CPUs both will suffer.