# page replacement algorithm

> algorithm in an OS that decides which memory pages to page out (swap out, write to disk) when a requested page is not in memory (page fault) and a free page cannot be used to satisfy the allocation (because there are too few or none)

**Wikidata**: [Q1330967](https://www.wikidata.org/wiki/Q1330967)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Page_replacement_algorithm)  
**Source**: https://4ort.xyz/entity/page-replacement-algorithm