avoid repeated infer for same batch in the tuning of DS2
avoid repeated infer for same batch in the tuning of DS2

PaddlePaddle/models,xinghai-sun/models,kuke/models,Superjom/models-1,xinghai-sun/models,kuke/models,qingqing01/models,kuke/models,kuke/models,Superjom/models-1,qingqing01/models,lcy-seso/models,lcy-seso/models,xinghai-sun/models,xinghai-sun/models,qingqing01/models,Superjom/models-1,PaddlePaddle/models,lcy-seso/models,PaddlePaddle/models