Alibaba Group Holding Limited
STORAGE CONTROL APPARATUS, PROCESSING APPARATUS, COMPUTER SYSTEM, AND STORAGE CONTROL METHOD

Abstract:

A storage control apparatus, a storage control method, a processing apparatus, and a computer system are disclosed. The storage control apparatus includes: an address detection unit, adapted to detect whether any jump of physical addresses to which sequentially arriving write access requests are mapped occurs; and a logic control unit, adapted to use a no-write allocate policy if a cache is not hit and no jump of the physical addresses to which the plurality of sequentially arriving write access requests are mapped occurs, where in the no-write allocate policy, if a quantity of continuous jumps of the physical addresses to which the plurality of sequentially arriving write access requests are mapped is less than a preset quantity, the logic control unit keeps using the no-write allocate policy, where the preset quantity is greater than 1. When the quantity of continuous jumps of the physical addresses to which the sequentially arriving write access requests are mapped is less than the preset quantity, embodiments of the present disclosure can keep using the no-write allocate policy, and avoid selecting a write allocate policy during processing of information of a low access probability. Therefore, robustness and stability of the computer system are enhanced.