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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
Oh, one of our customers’ users deleted the
/var
directory on one of the servers we provided to them, because it was “taking up too much space on disk”. That’s where Postgres saves its DBs as well; wiped out weeks of work in production for them. This hits very close to home.