LSDM: Improving the Performance of Mobile Storage with a Log-Structured Address Remapping Device Driver

@article{Zuck2014LSDMIT,
  title={LSDM: Improving the Performance of Mobile Storage with a Log-Structured Address Remapping Device Driver},
  author={Aviad Zuck and Oren Kishon and Sivan Toledo},
  journal={2014 Eighth International Conference on Next Generation Mobile Apps, Services and Technologies},
  year={2014},
  pages={221-228}
}
Mobile devices use low-cost SSDs such as microSD cards and eMMC devices for persistent data storage. However, The controllers of low-cost SSDs are optimized for reads and for sequential writes and they perform poorly under random writes. In this paper, we show that it is possible to overcome this limitation using a novel device driver on the host. Our driver, called LSDM, uses design techniques normally used in the firmware (FTL) of high-end SSD to transform random writes to sequential ones… CONTINUE READING

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