CAJ | 학술논문

为解决在线数据访问频率存在差异性造成的内存云服务器内存带宽负载不均衡问题，内存云数据中心采用段式日志结构文件系统，提出一种数据段交换（data‐segments exchanging ， DSE）算法，周期性地对内存带宽负载不均衡的服务器上数据段进行相互交换，使集群的带宽负载达到均衡。仿真结果表明，该算法可以使内存云集群的带宽负载达到均衡，时延降低了12.61％，有效提高了内存云集群的性能。
위해결재선수거방문빈솔존재차이성조성적내존운복무기내존대관부재불균형문제，내존운수거중심채용단식일지결구문건계통，제출일충수거단교환（data‐segments exchanging ， DSE）산법，주기성지대내존대관부재불균형적복무기상수거단진행상호교환，사집군적대관부재체도균형。방진결과표명，해산법가이사내존운집군적대관부재체도균형，시연강저료12.61％，유효제고료내존운집군적성능。
To solve the unbalanced bandwidth load problem occurred in the RAMCloud servers as a result of differences existed in the online data access frequency .The segment‐log‐structured file system was adopted in the RAMCloud data center ,and a DSE (data‐segments exchanging) algorithm was presented .The data segments on the bandwidth load of the unbalanced servers were exchanged periodically ,so that the bandwidth load on the servers through the exchange reached equilibrium .Simulation results show that the algorithm can balance the memory bandwidth of the clusters and reduce the latency by 12.61% ,and effectively im‐prove the performance of the RAMCloud clusters .