Notes: Operative Systems – Part 6

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NOTIFICATION: These notes are published for educational purposes. Using these notes is under your own responsibility and risk. These notes are given ‘as is’. I do not take responsibilities for how you use them.

PDF Content:

• Least recently used  (LRU) page replacement algorithm
• Not frequenty used (NFU) algorithm
• Aging (approximation of LRU) algorithm
• Working set
• Current virtual time
• Page replacement algorithm
• Clock page replacement algorithm
• WSClock page replacement algorithm
• Local vs. Global replacement policies
• Internal vs. External fragmentation
• Page size
• Periodic cleaning policy
• Thrashing
• Separation of policy and mechanism
• Concurrency vs. parallelism
• Critical sections

Operative_Systems_6

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© 2012, Alejandro G. Carlstein Ramos Mejia. All rights reserved.