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2023-10-23 23:09:51 +02:00
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remplacement de page - algorithme FIFO.md Normal file
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up:: [[algorithme de remplacement de page]]
title:: "remplacer la plus ancienne page chargée"
#informatique
---
# Exemple
avec 3 cadres (1, 2, 3)
|pages demandées :| 5 | 0 | 1 | 2 | 0 | 3 | 0 | 4 | 2 | 3 | 0 | 3 | 2 | 1 | 2 |
| ------------------ | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| page 0 | | 2 | | | |X|3| | |X|1| | | | |
| page 1 | | | 3 | | | | X | | | | | | |2| |
| page 2 | | | | 1 | | | |X|2| | | | |X|3|
| page 3 | | | | | | 2 | | |X|3| | | | |X|
| page 4 | | | | | | | |1| | |X| | | | |
| page 5 | 1 | | | X | | | | | | | | | | | |
| | | | | | | | | | | | | | | | |
| défaut de page | D | D | D | D | | D | D | D |D|D|D| | |D|D|
- 12 défauts de page
- 50% de plus que l'[[remplacement de page - algorithme optimal|algorithme optimal]]