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+ Operating system needed to check if routine is in processes’ memory address. + Dynamic linking is particularly useful for libraries. Memory Management Performs the above operations.
This chapter will introduce the concept of memory management and discuss its importance in operating systems. Memory management is the process of controlling and coordinating the use of computer memory to allow the efficient execution of programs and the sharing of memory among multiple processes.
Virtual memory basics. Survey techniques for implementing virtual memory. ♦ Fixed and variable partitioning. ♦ Paging. ♦ Segmentation. Focus on hardware support and lookup procedure. ♦ Next lecture we’ll go into sharing, protection, efficient implementations, and other VM tricks and features.
• What is memory management about? • Memory management strategies: – Fixed partition strategies – Dynamic partitions – Buffer pools – Garbage collection – Memory compaction
Survey techniques for implementing virtual memory. . Fixed and variable partitioning Paging Segmentation. Focus on hardware support and lookup procedure. Next lecture we’ll go into sharing, protection, efficient implementations, and other VM tricks and features.
Operating System Principles: Memory Management – Swapping, Paging, and Virtual Memory. CS 111 Operating Systems Peter Reiher. Swapping. Paging. Virtual memory. Outline. Swapping. What if we don’t have enough RAM? To handle all processes’ memory needs. Perhaps even to handle one process.
Goals of memory management • Allocate scarce memory resources among competing processes, maximizing memory utilization and system throughput • Provide a convenient abstraction for programming (and for compilers, etc.) • Provide isolation between processes –we have come to view “addressability” and “protection” as
