释义 |
cycle stealing
cycle stealing[′sī·kəl ‚stēl·iŋ] (computer science) A technique for memory sharing whereby a memory may serve two autonomous masters, commonly a central processing unit and an input-output channel or device controller, and in effect provide service to each simultaneously. cycle stealingA CPU design technique that periodically "grabs" machine cycles from the main processor usually by some peripheral control unit, such as a DMA (direct memory access) device. In this way, processing and peripheral operations can be performed concurrently or with some degree of overlap. See also peer-to-peer computing. |