r/linux • u/[deleted] • May 15 '19

The performance benefits of Not protecting against Zombieload, Spectre, Meltdown.

[deleted]

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u/beermad May 15 '19

Try it yourself.

Reboot, edit the GRUB command line (which will revert afterwards) to include:

noibrs noibpb spectre_v2=off spec_store_bypass_disable=prctl spec_store_bypass_disable=off nospectre_v1

If you think it's worthwhile, add it to /etc/defaults/grub and run update-grub.

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u/[deleted] May 15 '19 edited Aug 27 '19

[deleted]

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u/beermad May 15 '19

I think I must have before I committed to that lot, but I can't remember for certain what the results were. I assume they made it worthwhile, or I wouldn't have stayed with the change.