Diferencia entre revisiones de «Sol 6»
De Wiki de Sistemas Operativos
Línea 1: | Línea 1: | ||
+ | Solución: | ||
+ | nº fallos de página 6 | ||
+ | Tasa de fallos de página = --------------------- = ---- = 0,4615 | ||
+ | nº accesos a páginas 13 | ||
+ | |||
La lista de paginas a la que se acceden son las siguientes : | La lista de paginas a la que se acceden son las siguientes : | ||
''' 2(R)--2(W)--3(R)--1(R)--1(W)--3(R)--4(W)--5(R)--1(R)--1(W)--2(R)--3(W)--4(R)''' | ''' 2(R)--2(W)--3(R)--1(R)--1(W)--3(R)--4(W)--5(R)--1(R)--1(W)--2(R)--3(W)--4(R)''' | ||
− | Puesta a cero cada 4 acceso. | + | Puesta a cero (R) cada 4 acceso. |
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− | -- | + | Acceso Fallo |
− | 6 | + | a Marco Marco Marco Marco de |
− | + | página 1 2 3 4 página Tiempo | |
− | + | +-----+-----+-----+-----+--------+ | |
+ | | 2 | | | | | | ||
+ | 2(R) | R=1 | | | | x | 1 | ||
+ | | M=0 | | | | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | | | | | | ||
+ | 2(W) | R=1 | | | | | 2 | ||
+ | | M=1 | | | | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | 3 | | | | | ||
+ | 3(R) | R=1 | R=1 | | | x | 3 | ||
+ | | M=1 | M=0 | | | | | ||
+ | +-----+-----+-----+-----+--------+ +-------------+ | ||
+ | | = | = | 1 | | | | El bit R se | | ||
+ | 1(R) | R=1 | R=1 | R=1 | | x | 4 <--| pone a 0 | | ||
+ | | M=1 | M=0 | M=0 | | | +-------------+ | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | | | | ||
+ | 1(W) | R=0 | R=0 | R=1 | | | 5 | ||
+ | | M=1 | M=0 | M=1 | | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | | | | ||
+ | 3(R) | R=0 | R=1 | R=1 | | | 6 | ||
+ | | M=1 | M=0 | M=1 | | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | 4 | | | ||
+ | 4(W) | R=0 | R=1 | R=1 | R=1 | x | 7 | ||
+ | | M=1 | M=0 | M=1 | M=1 | | | ||
+ | +-----+-----+-----+-----+--------+ +-------------+ | ||
+ | | 5 | = | = | = | | | El bit R se | | ||
+ | 5(R) | R=1 | R=1 | R=1 | R=1 | x | 8 <--| pone a 0 | | ||
+ | | M=0 | M=0 | M=1 | M=1 | | +-------------+ | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | = | | | ||
+ | 1(R) | R=0 | R=0 | R=1 | R=0 | | 9 | ||
+ | | M=0 | M=0 | M=1 | M=1 | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | = | | | ||
+ | 1(W) | R=0 | R=0 | R=1 | R=0 | | 10 | ||
+ | | M=0 | M=0 | M=1 | M=1 | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | 2 | = | = | = | | | ||
+ | 3(W) | R=1 | R=0 | R=1 | R=0 | x | 11 | ||
+ | | M=0 | M=0 | M=1 | M=1 | | | ||
+ | +-----+-----+-----+-----+--------+ +-------------+ | ||
+ | | = | = | = | = | | | El bit R se | | ||
+ | 3(W) | R=1 | R=1 | R=1 | R=0 | | 12 <--| pone a 0 | | ||
+ | | M=0 | M=1 | M=1 | M=1 | | +-------------+ | ||
+ | +-----+-----+-----+-----+--------+ | ||
+ | | = | = | = | = | | | ||
+ | 4(R) | R=0 | R=0 | R=0 | R=1 | | 13 | ||
+ | | M=0 | M=1 | M=1 | M=1 | | | ||
+ | +-----+-----+-----+-----+--------+ | ||
[[Criterios_de_reemplazo|Volver]] | [[Criterios_de_reemplazo|Volver]] |
Revisión del 15:33 30 dic 2015
Solución:
nº fallos de página 6 Tasa de fallos de página = --------------------- = ---- = 0,4615 nº accesos a páginas 13
La lista de paginas a la que se acceden son las siguientes : 2(R)--2(W)--3(R)--1(R)--1(W)--3(R)--4(W)--5(R)--1(R)--1(W)--2(R)--3(W)--4(R)
Puesta a cero (R) cada 4 acceso.
Acceso Fallo a Marco Marco Marco Marco de página 1 2 3 4 página Tiempo +-----+-----+-----+-----+--------+ | 2 | | | | | 2(R) | R=1 | | | | x | 1 | M=0 | | | | | +-----+-----+-----+-----+--------+ | = | | | | | 2(W) | R=1 | | | | | 2 | M=1 | | | | | +-----+-----+-----+-----+--------+ | = | 3 | | | | 3(R) | R=1 | R=1 | | | x | 3 | M=1 | M=0 | | | | +-----+-----+-----+-----+--------+ +-------------+ | = | = | 1 | | | | El bit R se | 1(R) | R=1 | R=1 | R=1 | | x | 4 <--| pone a 0 | | M=1 | M=0 | M=0 | | | +-------------+ +-----+-----+-----+-----+--------+ | = | = | = | | | 1(W) | R=0 | R=0 | R=1 | | | 5 | M=1 | M=0 | M=1 | | | +-----+-----+-----+-----+--------+ | = | = | = | | | 3(R) | R=0 | R=1 | R=1 | | | 6 | M=1 | M=0 | M=1 | | | +-----+-----+-----+-----+--------+ | = | = | = | 4 | | 4(W) | R=0 | R=1 | R=1 | R=1 | x | 7 | M=1 | M=0 | M=1 | M=1 | | +-----+-----+-----+-----+--------+ +-------------+ | 5 | = | = | = | | | El bit R se | 5(R) | R=1 | R=1 | R=1 | R=1 | x | 8 <--| pone a 0 | | M=0 | M=0 | M=1 | M=1 | | +-------------+ +-----+-----+-----+-----+--------+ | = | = | = | = | | 1(R) | R=0 | R=0 | R=1 | R=0 | | 9 | M=0 | M=0 | M=1 | M=1 | | +-----+-----+-----+-----+--------+ | = | = | = | = | | 1(W) | R=0 | R=0 | R=1 | R=0 | | 10 | M=0 | M=0 | M=1 | M=1 | | +-----+-----+-----+-----+--------+ | 2 | = | = | = | | 3(W) | R=1 | R=0 | R=1 | R=0 | x | 11 | M=0 | M=0 | M=1 | M=1 | | +-----+-----+-----+-----+--------+ +-------------+ | = | = | = | = | | | El bit R se | 3(W) | R=1 | R=1 | R=1 | R=0 | | 12 <--| pone a 0 | | M=0 | M=1 | M=1 | M=1 | | +-------------+ +-----+-----+-----+-----+--------+ | = | = | = | = | | 4(R) | R=0 | R=0 | R=0 | R=1 | | 13 | M=0 | M=1 | M=1 | M=1 | | +-----+-----+-----+-----+--------+