Flash-Aware Buffer Management for Database Systems
Yi Hong Ou, Peiquan Jin, Theo Härder · International Journal of Knowledge-Based Organizations · 2013
Classical buffer replacement policies, e. g., LRU, are suboptimal for database systems having flash disks for persistence, because they are not aware of the distinguished characteristics of flash-based storage devices. The authors introduce the basic principles of buffer management for such devices and present two efficient buffer algorithms that apply these principles. These algorithms significantly improve the performance of flash-based databases, as confirmed by our trace-driven performance study.