Dirty/Clean Set Replacement Policy to Improve Buffer Cache Performance

Abstract

To improve Buffer performance, an existing buffer replacement algorithm based on hard disk drive is proposed
and Many Studies about buffer replacement algorithm based on flash memory which consider characteristic
of flash memory have been conducted recently. When existing buffer replacement algorithm based on flash
memory select victim page, it considers reference status and don't considers reference frequency or when it
takes into account reference recency, there are disadvantages that operate speed is slow because it consider
elapsed time. So, to solve the problem that has existing buffer replacement algorithm this thesis divide page
into 6 groups and when proposed algorithm select victim page, it consider reference page frequency and page
recency.