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translation lookaside buffer (memory management) (TLB)

When using virtual memories, the virtual addresses must be converted into physical addresses. So that this address conversion does not require an unnecessarily large number of memory accesses and in order to reduce memory management, hypervisors and with Second Level Address Translation( SLAT) are used for the address conversion.

In virtual memory management, a cache is added to the processor's cache with Second Level Address Translation (SLAT) for address conversion. This cache or look-ahead buffer is the Translation Lookaside Buffer(TLB) and acts as a buffer for the address tables.

When a program makes a memory access, the virtual address is sent to the TLB buffer. This determines whether it has stored the virtual address and can convert it to the physical address. The virtual address translated into the physical address is then made available to the program for memory access.

Englisch: translation lookaside buffer (memory management) - TLB
Updated at: 28.11.2018
#Words: 140
Links: virtual, address (A), conversion, memory, order
Translations: DE

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