The TLB lookup is combinational -- it evaluates in the same half-cycle as the limit check, requiring no additional clock. The common case (TLB hit, no page boundary crossing) adds zero overhead to a memory access. This is why the Segment Descriptor Cache and Page Cache (TLB) together occupy such substantial die area -- they are the fast path that makes protected mode competitive with real mode.
而 MacBook 那个比鼠标还好用的触控板，不仅基础的拖动点击都指哪打哪，还支持各种实用的手势，某种程度也承担了触控屏的作用。
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Environment variables from config written to /etc/environment
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36