Other extreme differences

• Mapping: Restricted (L1) vs. general (Paging)

  • Hardware assist for virtual addres translation (TLB)

• Miss handler

  • Harware only for caches
  • Software only for paging system (context-switch)
  • Hardware and/or software for TLB

• Replacement algorithm

  • Not important for caches
  • Very important for paging system

• Write policy

  • Always write back for paging systems

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