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Pagefaultalgorithme

Introduction

PageFaultalgorithme est un programme Java qui peut simuler le remplacement de la page de mémoire. Il s'agit d'une implémentation très simple, qui n'a que l'interface de ligne de commande.

Usage

Comment courir?

Vous pouvez utiliser les deux commandes ci-dessous pour exécuter PageFaultalgorithme : 

 java -jar PageFaultAlgorithm.jar

ou 

 java -jar PageFaultAlgorithm.jar ALGORITHM NUMBER_OF_FRAMES REFERENCES...

Exemples

First in First Out Page Remplacement 

 java -jar PageFaultAlgorithm.jar fifo 3 a b c d a b e a b c d e

Le résultat est, 

 Sequence Number: 0
	Frame 1(victim):
		Reference: null
	Frame 2:
		Reference: null
	Frame 3:
		Reference: null
Sequence Number: 1
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: a
	Frame 2(victim):
		Reference: null
	Frame 3:
		Reference: null

Sequence Number: 2
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: a
	Frame 2:
		Reference: b
	Frame 3(victim):
		Reference: null

Sequence Number: 3
	Reference: c
	Page Fault: true
	Frame 1(victim):
		Reference: a
	Frame 2:
		Reference: b
	Frame 3:
		Reference: c

Sequence Number: 4
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: b
	Frame 3:
		Reference: c

Sequence Number: 5
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2:
		Reference: a
	Frame 3(victim):
		Reference: c

Sequence Number: 6
	Reference: b
	Page Fault: true
	Frame 1(victim):
		Reference: d
	Frame 2:
		Reference: a
	Frame 3:
		Reference: b

Sequence Number: 7
	Reference: e
	Page Fault: true
	Frame 1:
		Reference: e
	Frame 2(victim):
		Reference: a
	Frame 3:
		Reference: b

Sequence Number: 8
	Reference: a
	Page Fault: false
	Frame 1:
		Reference: e
	Frame 2(victim):
		Reference: a
	Frame 3:
		Reference: b

Sequence Number: 9
	Reference: b
	Page Fault: false
	Frame 1:
		Reference: e
	Frame 2(victim):
		Reference: a
	Frame 3:
		Reference: b

Sequence Number: 10
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: e
	Frame 2:
		Reference: c
	Frame 3(victim):
		Reference: b

Sequence Number: 11
	Reference: d
	Page Fault: true
	Frame 1(victim):
		Reference: e
	Frame 2:
		Reference: c
	Frame 3:
		Reference: d

Sequence Number: 12
	Reference: e
	Page Fault: false
	Frame 1(victim):
		Reference: e
	Frame 2:
		Reference: c
	Frame 3:
		Reference: d

Number of Page Fault: 9

Le remplacement de la page d'horloge (deuxième chance) 

 java -jar PageFaultAlgorithm.jar sc 3 a b c d a b e a b c d e

Le résultat est, 

 Sequence Number: 0
	Frame 1(victim):
		Reference: null
		Use Bit: 0
	Frame 2:
		Reference: null
		Use Bit: 0
	Frame 3:
		Reference: null
		Use Bit: 0
Sequence Number: 1
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: a
		Use Bit: 1
	Frame 2(victim):
		Reference: null
		Use Bit: 0
	Frame 3:
		Reference: null
		Use Bit: 0

Sequence Number: 2
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: a
		Use Bit: 1
	Frame 2:
		Reference: b
		Use Bit: 1
	Frame 3(victim):
		Reference: null
		Use Bit: 0

Sequence Number: 3
	Reference: c
	Page Fault: true
	Frame 1(victim):
		Reference: a
		Use Bit: 1
	Frame 2:
		Reference: b
		Use Bit: 1
	Frame 3:
		Reference: c
		Use Bit: 1

Sequence Number: 4
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: d
		Use Bit: 1
	Frame 2(victim):
		Reference: b
		Use Bit: 0
	Frame 3:
		Reference: c
		Use Bit: 0

Sequence Number: 5
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: d
		Use Bit: 1
	Frame 2:
		Reference: a
		Use Bit: 1
	Frame 3(victim):
		Reference: c
		Use Bit: 0

Sequence Number: 6
	Reference: b
	Page Fault: true
	Frame 1(victim):
		Reference: d
		Use Bit: 1
	Frame 2:
		Reference: a
		Use Bit: 1
	Frame 3:
		Reference: b
		Use Bit: 1

Sequence Number: 7
	Reference: e
	Page Fault: true
	Frame 1:
		Reference: e
		Use Bit: 1
	Frame 2(victim):
		Reference: a
		Use Bit: 0
	Frame 3:
		Reference: b
		Use Bit: 0

Sequence Number: 8
	Reference: a
	Page Fault: false
	Frame 1:
		Reference: e
		Use Bit: 1
	Frame 2(victim):
		Reference: a
		Use Bit: 1
	Frame 3:
		Reference: b
		Use Bit: 0

Sequence Number: 9
	Reference: b
	Page Fault: false
	Frame 1:
		Reference: e
		Use Bit: 1
	Frame 2(victim):
		Reference: a
		Use Bit: 1
	Frame 3:
		Reference: b
		Use Bit: 1

Sequence Number: 10
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: e
		Use Bit: 0
	Frame 2:
		Reference: c
		Use Bit: 1
	Frame 3(victim):
		Reference: b
		Use Bit: 0

Sequence Number: 11
	Reference: d
	Page Fault: true
	Frame 1(victim):
		Reference: e
		Use Bit: 0
	Frame 2:
		Reference: c
		Use Bit: 1
	Frame 3:
		Reference: d
		Use Bit: 1

Sequence Number: 12
	Reference: e
	Page Fault: false
	Frame 1(victim):
		Reference: e
		Use Bit: 1
	Frame 2:
		Reference: c
		Use Bit: 1
	Frame 3:
		Reference: d
		Use Bit: 1

Number of Page Fault: 9

Remplacement de page le moins récemment utilisé 

 java -jar PageFaultAlgorithm.jar lru 3 a b c d a b e a b c d e

Le résultat est, 

 Sequence Number: 0
	Frame 1(least recently used):
		Reference: null
		Recent Order: 0
	Frame 2:
		Reference: null
		Recent Order: 1
	Frame 3:
		Reference: null
		Recent Order: 2
Sequence Number: 1
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: a
		Recent Order: 2
	Frame 2(least recently used):
		Reference: null
		Recent Order: 0
	Frame 3:
		Reference: null
		Recent Order: 1

Sequence Number: 2
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: a
		Recent Order: 1
	Frame 2:
		Reference: b
		Recent Order: 2
	Frame 3(least recently used):
		Reference: null
		Recent Order: 0

Sequence Number: 3
	Reference: c
	Page Fault: true
	Frame 1(least recently used):
		Reference: a
		Recent Order: 0
	Frame 2:
		Reference: b
		Recent Order: 1
	Frame 3:
		Reference: c
		Recent Order: 2

Sequence Number: 4
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: d
		Recent Order: 2
	Frame 2(least recently used):
		Reference: b
		Recent Order: 0
	Frame 3:
		Reference: c
		Recent Order: 1

Sequence Number: 5
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: d
		Recent Order: 1
	Frame 2:
		Reference: a
		Recent Order: 2
	Frame 3(least recently used):
		Reference: c
		Recent Order: 0

Sequence Number: 6
	Reference: b
	Page Fault: true
	Frame 1(least recently used):
		Reference: d
		Recent Order: 0
	Frame 2:
		Reference: a
		Recent Order: 1
	Frame 3:
		Reference: b
		Recent Order: 2

Sequence Number: 7
	Reference: e
	Page Fault: true
	Frame 1:
		Reference: e
		Recent Order: 2
	Frame 2(least recently used):
		Reference: a
		Recent Order: 0
	Frame 3:
		Reference: b
		Recent Order: 1

Sequence Number: 8
	Reference: a
	Page Fault: false
	Frame 1:
		Reference: e
		Recent Order: 1
	Frame 2:
		Reference: a
		Recent Order: 2
	Frame 3(least recently used):
		Reference: b
		Recent Order: 0

Sequence Number: 9
	Reference: b
	Page Fault: false
	Frame 1(least recently used):
		Reference: e
		Recent Order: 0
	Frame 2:
		Reference: a
		Recent Order: 1
	Frame 3:
		Reference: b
		Recent Order: 2

Sequence Number: 10
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: c
		Recent Order: 2
	Frame 2(least recently used):
		Reference: a
		Recent Order: 0
	Frame 3:
		Reference: b
		Recent Order: 1

Sequence Number: 11
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: c
		Recent Order: 1
	Frame 2:
		Reference: d
		Recent Order: 2
	Frame 3(least recently used):
		Reference: b
		Recent Order: 0

Sequence Number: 12
	Reference: e
	Page Fault: true
	Frame 1(least recently used):
		Reference: c
		Recent Order: 0
	Frame 2:
		Reference: d
		Recent Order: 1
	Frame 3:
		Reference: e
		Recent Order: 2

Number of Page Fault: 10

Remplacement de page optimal 

 java -jar PageFaultAlgorithm.jar optimal 3 a b c d a b e a b c d e

Le résultat est, 

 Sequence Number: 0
	Frame 1(victim):
		Reference: null
		Next Reference Sequence: Undefined
	Frame 2:
		Reference: null
		Next Reference Sequence: Undefined
	Frame 3:
		Reference: null
		Next Reference Sequence: Undefined
Sequence Number: 1
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: a
		Next Reference Sequence: 5
	Frame 2(victim):
		Reference: null
		Next Reference Sequence: Undefined
	Frame 3:
		Reference: null
		Next Reference Sequence: Undefined

Sequence Number: 2
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: a
		Next Reference Sequence: 5
	Frame 2:
		Reference: b
		Next Reference Sequence: 6
	Frame 3(victim):
		Reference: null
		Next Reference Sequence: Undefined

Sequence Number: 3
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: a
		Next Reference Sequence: 5
	Frame 2:
		Reference: b
		Next Reference Sequence: 6
	Frame 3(victim):
		Reference: c
		Next Reference Sequence: 10

Sequence Number: 4
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: a
		Next Reference Sequence: 5
	Frame 2:
		Reference: b
		Next Reference Sequence: 6
	Frame 3(victim):
		Reference: d
		Next Reference Sequence: 11

Sequence Number: 5
	Reference: a
	Page Fault: false
	Frame 1:
		Reference: a
		Next Reference Sequence: 8
	Frame 2:
		Reference: b
		Next Reference Sequence: 6
	Frame 3(victim):
		Reference: d
		Next Reference Sequence: 11

Sequence Number: 6
	Reference: b
	Page Fault: false
	Frame 1:
		Reference: a
		Next Reference Sequence: 8
	Frame 2:
		Reference: b
		Next Reference Sequence: 9
	Frame 3(victim):
		Reference: d
		Next Reference Sequence: 11

Sequence Number: 7
	Reference: e
	Page Fault: true
	Frame 1:
		Reference: a
		Next Reference Sequence: 8
	Frame 2:
		Reference: b
		Next Reference Sequence: 9
	Frame 3(victim):
		Reference: e
		Next Reference Sequence: 12

Sequence Number: 8
	Reference: a
	Page Fault: false
	Frame 1(victim):
		Reference: a
		Next Reference Sequence: No
	Frame 2:
		Reference: b
		Next Reference Sequence: 9
	Frame 3:
		Reference: e
		Next Reference Sequence: 12

Sequence Number: 9
	Reference: b
	Page Fault: false
	Frame 1(victim):
		Reference: a
		Next Reference Sequence: No
	Frame 2:
		Reference: b
		Next Reference Sequence: No
	Frame 3:
		Reference: e
		Next Reference Sequence: 12

Sequence Number: 10
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: c
		Next Reference Sequence: No
	Frame 2(victim):
		Reference: b
		Next Reference Sequence: No
	Frame 3:
		Reference: e
		Next Reference Sequence: 12

Sequence Number: 11
	Reference: d
	Page Fault: true
	Frame 1(victim):
		Reference: c
		Next Reference Sequence: No
	Frame 2:
		Reference: d
		Next Reference Sequence: No
	Frame 3:
		Reference: e
		Next Reference Sequence: 12

Sequence Number: 12
	Reference: e
	Page Fault: false
	Frame 1(victim):
		Reference: c
		Next Reference Sequence: No
	Frame 2:
		Reference: d
		Next Reference Sequence: No
	Frame 3:
		Reference: e
		Next Reference Sequence: No

Number of Page Fault: 7

Remplacement de la page aléatoire 

 java -jar PageFaultAlgorithm.jar random 3 a b c d a b e a b c d e

Le résultat est, 

 Sequence Number: 0
	Frame 1(victim):
		Reference: null
	Frame 2:
		Reference: null
	Frame 3:
		Reference: null
Sequence Number: 1
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: a
	Frame 2(victim):
		Reference: null
	Frame 3:
		Reference: null

Sequence Number: 2
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: a
	Frame 2:
		Reference: b
	Frame 3(victim):
		Reference: null

Sequence Number: 3
	Reference: c
	Page Fault: true
	Frame 1(victim):
		Reference: a
	Frame 2:
		Reference: b
	Frame 3:
		Reference: c

Sequence Number: 4
	Reference: d
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: b
	Frame 3:
		Reference: c

Sequence Number: 5
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: a
	Frame 3:
		Reference: c

Sequence Number: 6
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2:
		Reference: b
	Frame 3(victim):
		Reference: c

Sequence Number: 7
	Reference: e
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: b
	Frame 3:
		Reference: e

Sequence Number: 8
	Reference: a
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: a
	Frame 3:
		Reference: e

Sequence Number: 9
	Reference: b
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2(victim):
		Reference: b
	Frame 3:
		Reference: e

Sequence Number: 10
	Reference: c
	Page Fault: true
	Frame 1:
		Reference: d
	Frame 2:
		Reference: c
	Frame 3(victim):
		Reference: e

Sequence Number: 11
	Reference: d
	Page Fault: false
	Frame 1:
		Reference: d
	Frame 2:
		Reference: c
	Frame 3(victim):
		Reference: e

Sequence Number: 12
	Reference: e
	Page Fault: false
	Frame 1:
		Reference: d
	Frame 2:
		Reference: c
	Frame 3(victim):
		Reference: e

Number of Page Fault: 10

Licence 

 Copyright 2015 magiclen.org

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Quoi de plus?

Veuillez consulter notre page Web à

http://magiclen.org/page-fault/

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