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this post was submitted on 23 Jun 2024
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Others have already laughed at this idea, but on a similar topic:
I know we’ve basically disabled a lot of features that sped up the CPU but introduced security flaws. Is there a way to turn those features back on for an airgapped computer intentionally?
The kernel option is
mitigations=off, if you want to try adding it to your Grub command line? From the testing I've done, provides no benefits whatsoever - no more frames in games, compilation runs no quicker, battery life on a laptop is no better.https://wiki.archlinux.org/title/Improving_performance#Turn_off_CPU_exploit_mitigations
Haven't used it in years, but it might still work:
https://www.grc.com/inspectre.htm