TLBs and Caches

CPU

TB

$

MEM

VA

PA

PA

Conventional

Organization

CPU

$

TB

MEM

VA

VA

PA

Virtually Addressed Cache

Translate only on miss

Alias (Synonym) Problem

CPU

$

TB

MEM

VA

PA

Tags

PA

Overlap $ access

with VA translation:

requires $ index to

remain invariant

across translation

VA

Tags

L2 $

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