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Virtual memory (Page Fault (Page buffering 機制, Page fault處理步驟, Free-frame…
Virtual memory
Page Fault
Page buffering 機制
Page fault處理步驟
Free-frame list(跟free frame pool不一樣)
Performance 計算
影響Page fault ratio 因素
Page replacement法則
FIFO
OPT
LRU
LRU Approximation
Additional referece Bits Usage
Second Chance
Enhanced Second Chance
LFU/MFU
Page buffering 機制
Free frames pool
面臨問題:database
補充:Memory mapped file
Frame數分配多寡之影響
Page size之影響
Programming Structure
Demand Paging 技術(實現VM)
採取Lazy Swapper
最初狀態
Prepaging:事先載入Page
Pure demand paging:事先不載入任何Page
硬體支援
Page table valid/invalid bit
Restart
Swap
Thrashing
Working set model 技術
Virtual Memory 背景
Copy-on-write
Memory compression
I/O inter lock