会议专题

Layered Memory Architecture for High IO Intensive Information Services to Achieve Timeliness

Storage systems need to provide high IO transactions in addition to their capacity and availability requirements to achieve high assurance characteristics, such as fault tolerance and timeliness. Caches built in large and medium size storage systems have not been very effective to improve the IO transactions and overall performance of the system. Caches at various layers of the memory hierarchy in computing systems are more fast but very small compared to the adjacent lower level of storage device. This paper proposes a novel concept to exploit local memory as a block device to improve the IO performance of storage systems called Data Transmission System (DTS) concept. This concept is based on hierarchical layered memory utilization and management in the information system. Data accessed frequently is maintained on the managed DTS cache device in close proximity to the CPU. The proposed concept is substantially different from the conventional unmanaged cache in the computing systems. System architecture and detailed system design are presented in this paper to realize the proposed concept. Performance evaluation of the system has been carried out through numerical as well as application scenario. The experimental results show improvement of the order of 10 to 100 times faster IO transactions and reduce CPU wait time significantly.

DTS (Data Transmission System) cache Timeliness Write back cache Block IO device Locality of reference IOPS Bonnie Bench mark program iSCSI protocol

Hironao Takahashi Hafiz Farooq Ahmad Kinji Mori1

Department of Computer Science, Tokyo Institute of Technology 2-12-1 Ookayama Meguro, Tokyo, 152-852 School of Electrical Engineering and Computer Science (Formerly NIIT) National University of Science Department of Computer Science, Tokyo Institute of Technology 2-12-1 Ookayama Meguro, Tokyo, 152-852

国际会议

11th IEEE High Assurance Systems Engineering Symposium(HASE 2008)(第十一届IEEE高可信系统工程国际研讨会)

南京

英文

343-349

2008-12-03(万方平台首次上网日期,不代表论文的发表时间)