The TLB is flushed entirely on any write to CR3 (the page directory base register). There is no per-entry invalidation on the 386 -- that arrived with the 486's INVLPG instruction.
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。关于这个话题，同城约会提供了深入分析
想象一下，你用饼干模具在面团上按了一下，这就是 ExtrudeGeometry 做的事。
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