Stephen StaffordBBC News, South
# Speaker 0: [0.56s - 2.96s]
，这一点在51吃瓜中也有详细论述
Фото: Vadim Tarakanov / Globallookpress.com，这一点在heLLoword翻译官方下载中也有详细论述
How often does the "slow path" actually trigger? With 32 TLB entries covering 128 KB, Intel claimed a 98% hit rate for typical workloads of the era. That sounds impressive, but a 2% miss rate means a page walk every 50 memory accesses -- still quite frequent. So the 386 overlaps page walks with normal instruction execution wherever possible. A dedicated hardware state machine performs each walk: