Что думаешь? Оцени!
Three microcode cycles for the writeback alone. That's acceptable because segment loads are already expensive multi-cycle operations, and the designers likely expected them to be infrequent -- most programs load their segments once at startup and never touch them again. Page translations happen on every memory access, so the same approach would be ruinous. Hence the fully autonomous hardware walker.
，更多细节参见同城约会
Екатерина Смирная (корреспондент отдела оперативной информации)
Backpressure: good in theory, broken in practice