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For me, "tuning" linux for performance = disabling spectre/meltdown mitigations (in this case compute nodes are running in a VPC with no internet access, so see
by umvi 3y ago
For me, "tuning" linux for performance = disabling spectre/meltdown mitigations (in this case compute nodes are running in a VPC with no internet access, so seems pretty low risk)
- Vecr 3y agoDepends on what CPU you are running, on Zen 4 it's not supported to disable the mitigations and caused bugs/crashes. I think they did fix that exact crash but I'd still not recommend it. New CPUs from both AMD and Intel are designed to be run with at least the default mitigations on.