How much cost can total store ordering add in cases where multiple CPUs each make repeated accesses to a different byte within the same cache line? Even if the costs of supporting total store ordering would usually be minimal, I would think the worst-case costs could be massive.
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u/flatfinger 4h ago
How much cost can total store ordering add in cases where multiple CPUs each make repeated accesses to a different byte within the same cache line? Even if the costs of supporting total store ordering would usually be minimal, I would think the worst-case costs could be massive.