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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.
，这一点在服务器推荐中也有详细论述
// 单调栈：存储索引（而非值），栈内索引对应的nums值保持「单调递减」
Does today's Wordle answer have a double letter?There are no recurring letters.