Lecture 0x12

Lecture 0x12: Memory Management Wrapup
Date: Monday, April 4, 2016

Agenda

Announcements
- Programming Project 3: knish: The Knight Shell no late penalties before the end of the week, but get them done ASAP so you can move on
- Term Project term project proposals past due, next milestone is a progress report with annotated bibliography 2 weeks from today
Lecture 0x11 assignment recap
Lab 5: Working Set Simulation discussion and recap of working set model of frame allocation
Segmentation
- like paging, but with variable-sized segments instead of fixed-size frames
- allocate segments according to logical breakdown of memory usage
- segment table requires base and offset
- external fragmentation can be a problem (as with the contiguous allocation approach)
Combinations of Segmentation and Paging
- Intel Pentium memory hardware
  - Lots of details in Intel 64 and IA-32 Architecture Software Developer's Manual, Don't print it - it's over 1900 pages. Memory management is described in great detail in Chapter 3.
  - Easier to digest: excerpt from newest Tanenbaum OS text (see handout).

No New Lecture Assignment

The readings for next class are SG&G Chapters 9 and 10.

Links