Translation Lookaside Buffer (TLB)

A translation lookaside buffer (TLB) is a memory cache that stores recent translations of virtual memory to physical memory, reducing the time taken to access user memory. It is typically found in processors that use paged or segmented virtual memory and can be implemented as content-addressable memory (CAM). When a requested address is present in the TLB, it results in a quick match called a TLB hit, but if the address is not in the TLB, a page walk process is initiated to find the physical address.