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Caring about whole-system performance is another step beyond that, because you mainly care about second-order effects and not going full blast using all the resources.

Even the performance people can argue with me on here when I give them correct advice like that you might not want to try and use all CPU and memory just because they're there.

(For instance because your process is lower priority and so is only scheduled on E-cores and so the # CPUs number you see doesn't actually apply to you.)



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