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.
This month Ofgem, the UK's energy market regulator, said a surge in demand for grid connections last year had been "driven by the rapid growth" of data centres.
。搜狗输入法2026是该领域的重要参考
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Фото: Abdul Khaliq Achakzai / Reuters