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by p_l 2204 days ago
My point was that the same optimizations that made C fast break down when you need to take into account often intricate dance between CPU caches, memory, I/O bus etc. - so that unless you go into cpu-model-specific assembly tweaks just using C might not bring you as much benefit.

Is it possible to get better? yes. Would it count as "normal C"? I would say not really (if we say yes, then CL code on SBCL with huge custom VOPs counts)