| cache line (Or cache block) The smallest unit of memory than can be transferred between the and the . Rather than reading a single word or byte from main memory at a time, each cache entry is usually holds a certain number of words, known as a "cache line" or "cache block" and a whole line is read and cached at once. This takes advantage of the principle of locality of reference: if one location is read then nearby locations (particularly following locations) are likely to be read soon afterwards. It can also take advantage of which allows faster access to consecutive locations. (1997-01-21) |
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