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Virtual Memory (demand paging (demand paging 定義, pure demand paging,…
Virtual
Memory
demand paging
demand paging 定義
pure demand paging
valid-invalid bit
page fault 處理流程
swapper v.s. pager
effective access time (EAT)
計算公式
page replacement
dirty bit
FIFO
Longest recently used (LRU)
Optimal
Belady's anomaly
allocation of frames
fixed allocation
priority allocation
local allocation
global allocation
thrashing
thrashing 定義
thrashing 原因
working set model
page fault frequency
process creation
copy on write (COW)
定義
優點
memory mapped
files (MMF)
定義
優點
缺點
pool of zeroed-out frame