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Chapter 9: Virtual Memory

Chapter 9: Virtual Memory

Chapter 9: Virtual Memory. Chapter 9: Virtual Memory. Background Demand Paging Copy-on-Write Page Replacement Allocation of Frames Thrashing Memory-Mapped Files Allocating Kernel Memory Other Considerations Operating-System Examples. Objectives.

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878 views • 72 slides
Background

Background

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586 views • 53 slides
Background

Background

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540 views • 53 slides
Operating Systems

Operating Systems

Operating Systems. Page Replacement Algorithms. Virtual Memory Management. Background Demand Paging Demand Segmentation Paging Considerations Page Replacement Algorithms Virtual Memory Policies. Page Replacement Algorithms. Want lowest page-fault rate.

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586 views • 34 slides
Operating Systems

Operating Systems

Operating Systems. Page Replacement Algorithms. Virtual Memory Management. Background Demand Paging Demand Segmentation Paging Considerations Page Replacement Algorithms Virtual Memory Policies. Page Replacement Algorithms. Want lowest page-fault rate.

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356 views • 34 slides
Allocation of Frames & Thrashing (Virtual Memory)

Allocation of Frames & Thrashing (Virtual Memory)

Allocation of Frames & Thrashing (Virtual Memory). LRU Algorithm. Reference string: 1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5 Counter implementation: Every page entry has a counter; every time page is referenced through this entry, copy the clock into the counter.

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1.16k views • 23 slides
Allocation of Frames & Thrashing (Virtual Memory)

Allocation of Frames & Thrashing (Virtual Memory)

Allocation of Frames & Thrashing (Virtual Memory). LRU Algorithm. Reference string: 1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5 Counter implementation: Every page entry has a counter; every time page is referenced through this entry, copy the clock into the counter.

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298 views • 23 slides

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