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What is TLB in context of operating system ?

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What is TLB in context of operating system ?
posted Sep 2, 2013 by Vikram Singh

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TLB is a cache that memory management hardware uses to improve virtual address translation speed.

1 Answer

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A TLB has a fixed number of slots that contain page table entries, which map virtual addresses to physical addresses. The virtual memory is the space seen from a process. This space is segmented in pages of a prefixed size. The page table (generally loaded in memory) keeps track of where the virtual pages are loaded in the physical memory. The TLB is a cache of the page table hence it helps to improve the address translation speed.

answer Sep 2, 2013 by Meenal Mishra