MOLAR: A Cost-Efficient, High-Performance Hybrid Storage Cache
文献类型：会议论文
| 作者 | Liu, Yi; Ge, Xiongzi; Huang, Xiaoxia; Du, David H. C. |
| 出版日期 | 2013 |
| 会议名称 | 15th IEEE International Conference on Cluster Computing, CLUSTER 2013 |
| 会议地点 | Indianapolis, IN |
| 英文摘要 | This paper proposes a deMOtion-based, fLAsh-awaRe hybrid storage cache model, named MOLAR, to effectively integrate Flash-based Solid State Disks (SSDs) into traditional DRAM-based memory storage systems. In MOLAR, a flash-aware I/O path structure is designed to adapt the asymmetric read and write performance of SSD and moreover to reduce useless write operations. A new control metric, demotion count, is proposed to wisely select the evicted data blocks from DRAM to reside in SSD. Besides, for SSD can improve internal data placement from data access hints, the Logical Block Addresses (LBAs) in SSD are grouped into the long-lived region and the short-lived region self-adaptively via a heuristic control algorithm based on the change of data block demotion count. Through trace-driven simulations, the overall hit ratio in MOLAR outperforms two traditional policies from 1.44% to 5.34%. The average write latency in SSD is reduced by 3.5 X. Moreover, write amplification is effectively reduced by about 36% in two typical flash address mapping policies. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5120]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2013 |
| 推荐引用方式 GB/T 7714 | Liu, Yi,Ge, Xiongzi,Huang, Xiaoxia,et al. MOLAR: A Cost-Efficient, High-Performance Hybrid Storage Cache[C]. 见:15th IEEE International Conference on Cluster Computing, CLUSTER 2013. Indianapolis, IN. |
入库方式： OAI收割
来源：深圳先进技术研究院
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