Summary
Explore how Translation Lookaside Buffers act as a fast cache for virtual address translation, reducing the need to access slower page tables. Learn about their benefits in maintaining program performance, challenges such as TLB coverage limits, and hardware considerations with caching strategies. This lesson helps you understand key optimizations that make virtual memory more efficient in modern operating systems.
We'll cover the following...
We have seen how hardware can help us make address translation faster. By providing a small, dedicated on-chip TLB as an address-translation cache, most memory references will hopefully be handled without having to access the page table in the main memory. Thus, in the common case, the performance of the program will be almost as if memory isn’t being virtualized at all, an excellent achievement for an operating system, and certainly essential to the use of paging in ...