FD-buffer: a buffer manager for databases on flash disks

  title={FD-buffer: a buffer manager for databases on flash disks},
  author={Sai Tung On and Yinan Li and Beixin Julie He and Ming Wu and Qiong Luo and Jianliang Xu},
We design and implement FD-Buffer, a buffer manager for database systems running on flash-based disks. Unlike magnetic disks, flash media has an inherent read-write asymmetry: writes involve expensive erase operations and as a result are usually much slower than reads. Therefore, we address this asymmetry in FD-Buffer. Specifically, we use the average I/O cost per page access as opposed to the traditional miss rate as the performance metric for a buffer. We develop a new replacement policy in… CONTINUE READING

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