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Memory Management in Windows 7

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Memory Management
PFN
NUMA
NVRAM

Published in: Education
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Memory Management in Windows 7

  1. 1. Memory>>>
  2. 2. Memory Management>>> > >
  3. 3. Binding of Instructions & Data to Memory>>>
  4. 4. Logical vs. Physical Address Space
  5. 5. Special CPU registers: base & limit 0xFFFF 0x2000 o Registers contain Limit • Base: start of the process’s Process memory partition partition • Limit: length of the process’s Base memory partition 0x9000Address generation o Physical address: location in OS actual memory 0 o Logical address: location from Logical address: 0x1204 the process’s point of view Physical address: o Physical address = base + 0x1204+0x9000 = 0xa204 logical address o Logical address larger than limit => error
  6. 6. Swapping>>>>>
  7. 7. Fragmentation>>> o o
  8. 8. Paging>>>>>>
  9. 9. Implementation of Page Table>>>>>
  10. 10. Task Manager’s Main Screen
  11. 11. Task Manager Working Set Display
  12. 12. Integrated NVRAM Support>>>>
  13. 13. PFN Lock>> > > > > > > >
  14. 14. >>>>>>>
  15. 15. >>>>>
  16. 16. > NUMA architectures logically follow in scaling from symmetric multiprocessing (SMP) architectures.> Their commercial development came in work by (Unisys, Hewlett- Packard, Group Bull, Silicon Graphics, IBM), EMC, Compaq, HP) during the 1990s.> Techniques developed by these companies later featured in a variety of Unix-like operating systems, and somewhat in Windows NT.>>>
  17. 17. >>>>>>
  18. 18. The Output

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