Implementing sorting in database systems
ACM Computing Surveys (CSUR)
Compression techniques for fast external sorting
The VLDB Journal — The International Journal on Very Large Data Bases
FSort: external sorting on flash-based sensor devices
Proceedings of the Sixth International Workshop on Data Management for Sensor Networks
FAST: Flash-aware external sorting for mobile database systems
Journal of Systems and Software
Fast sorting on flash memory sensor nodes
Proceedings of the Fourteenth International Database Engineering & Applications Symposium
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Since huge-capacity flash memory is now an economic solution for various portable devices and enterprise systems, a NAND flash-based storage system has replaced a hard-disk drive in many applications. Recently, the implementation of database systems on NAND flash-based storage systems has become an important research topic. In particular, the external sorting is an important operation on database systems. With the very distinctive characteristics of flash memory, the typical external sorting that adopts a clustered sorting could result in performance degradation and reduce the reliability of flash memory. In the paper, we will propose an unclustered sorting that considers flash-memory characteristics. According to the experimental results, the improve ratio of the execution time and the energy consumption can be about 25%.