> What is the TLB Cache ???
TLB (Translation Look aside Buffer) cache, is cache for translation
entries to translate Virtual Address to Physical Address. other way
around, TLB is subset of Page Table and TLB being small in size contains
only most recently used entries from page table. Ofcourse entries are
replaced as and when required, depending on the the replacement policy.
TLB entry also contains other fields like Valid Bit, Read/Write
Permissions, Dirty bit etc. as page table is not accessed for these fields
if there is hit in TLB.
hope that helps,
-Rajan
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