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3 cards from this section. Quick, good the night before a test.
What does the valid bit in a page table entry signify?
Think about what happens when a page is accessed.
What are the two main components of a virtual address?
Focus on how the virtual address is structured.
What does the valid bit indicate in a page table entry?
What would happen if the bit is '0'?
True or False: A page table can only map virtual pages to physical memory, not to disk.
Remember discussions about valid and invalid mapping.
Calculate how much physical memory is required for page tables if a system is running 200 processes, each with a page table size of 4MB?
Multiply the number of processes by the size of a single page table.
Discuss the potential performance issues in a system with inadequate page table management strategies.
Consider how processes might compete for memory.
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