Bo Liu innovateboliu
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| crdt | |
| lasp | |
| john backus |
innovateboliu
/ OS
Created
January 25, 2017 00:34
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| Memory Management | |
| Virtual memory | |
| Page - virtual and physical memorys are both divided into pages (4KB on Intel X86) | |
| Page Frame Number | |
| PFN(0:11) + offset(12:) for 4KB page read by process | |
| Page tables: Processor translates PFN+offset to physical PFN | |
| Three level in linux | |
| Page table entry | |
| Valid flag: if page default | |
| Physical PFN, |