UMBC CMSC 313, Computer Organization & Assembly Language, Fall 2003, Section 0101

Linux Memory Model

Thursday 10/09, 2001

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Assigned Reading in Murdocca & Heuring:  7.7

Assigned Reading in Neveln:  8.1-8.8

Assigned:   

Due:   

Topics Covered:

• Slides are available in PDF: Slides13.pdf
• The storage hierarchy consisting of registers, cache, main memory (RAM), secondary storage (hard disk) and off-line storage (tape) and trade-offs between cost and speed.
• Problems with memory management: not enough RAM, memory protection and fragmentation.
• Virtual memory by paging.
• Two-tiered address translation scheme supported by the Pentium chip.
• How Linux implements memory protection using the virtual memory system.