Traditional QoS management mechanism of memory controller cannot effectively control the latency of processor accesses.To solve this problem

this paper proposes the PRCC mechanism.Based on the prediction of the future processor accesses

PRCC analyzes the impact of device accesses on the latency of processor accesses

and prevents issuing the accesses that will result in that processor accesses change from row hits to row conflicts

so PRCC can reduce the impact of device accesses on the latency of processor accesses.The evaluation results for PKUnity-3(SK) SoC show that after applying PRCC service

the impact of device accesses on program execution time is reduced from 24% to 8%.By parameter adjustment

PRCC achieves better performance trade-offs between processor and devices than traditional methods.