Term of the Moment

analog


Look Up Another Term


Definition: cache coherency


Managing a cache so that data are not lost or overwritten. For example, when data are updated in a cache but not yet transferred to the target memory or disk, the chance of corruption is greater. Accomplished by well-designed algorithms that keep track of every read and write event, cache coherency is even more critical in symmetric multiprocessing (SMP) where memory is shared by multiple processors. See cache and SMP.