We'll take a 25x speedup
What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.
，这一点在爱思助手下载最新版本中也有详细论述
processed by machines, do we really need to courier them to rooms full of
Wordle today: Answer, hints for February 27, 2026
Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00580-2