Diferencia entre revisiones de «Solución ejercicio 1 memoria virtual»
De Wiki de Sistemas Operativos
m (→NRU (por solucionar): errata) |
(solución NRU) |
||
| Línea 6: | Línea 6: | ||
| 1 | 1 | = | = | = | = | = | 5 | = | = | = | = | 4 | | | 1 | 1 | = | = | = | = | = | 5 | = | = | = | = | 4 | | ||
--------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ||
| − | marcos | 2 | | + | marcos | 2 | | | | 2 | = | = | = | = | 1 | = | = | = | |
-------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- | ||
| − | | 3 | | + | | 3 | | | | | 3 | = | = | = | = | 2 | = | = | |
--------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ||
| − | | 4 | | + | | 4 | | | | | | 4 | = | = | = | = | 3 | = | |
--------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | ||
fallo | X | | | X | X | X | X | | X | X | X | X | | fallo | X | | | X | X | X | X | | X | X | X | X | | ||
| Línea 19: | Línea 19: | ||
9 | 9 | ||
| − | talla de fallos de página = ----- = 0.75 | + | talla de fallos de página = ------ = 0.75 |
12 | 12 | ||
| − | = NRU | + | = NRU = |
| + | |||
| + | En caso de empate, se emplea LRU. | ||
accesos a páginas | accesos a páginas | ||
| Línea 29: | Línea 31: | ||
| 1 | 1 | 1 | 2 | 3 | 4 | 5 | 3 | 1 | 2 | 3 | 4 | | | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 3 | 1 | 2 | 3 | 4 | | ||
--------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ||
| − | | 1 | | + | | 1 | 1 | = | = | = | = | = | = | = | = | = | = | = | |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | | |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | ||
| − | | R | M | | + | | R | M | 1 | 0 | = | = | 1 | 1 | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | |
--------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ||
| − | marcos | 2 | | | | | + | marcos | 2 | | | | 2 | = | = | 5 | = | = | = | = | 4 | |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | | |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | ||
| − | | R | M | | | | | | | | + | | R | M | | | | | | | 1 | 0 | = | = | = | = | 1 | 0 | = | = | = | = | = | = | = | = | 1 | 0 | |
--------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ||
| − | | 3 | | | | | | + | | 3 | | | | | 3 | = | = | 3 | = | = | = | = | |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | | |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | ||
| − | | R | M | | | | | | | | | | + | | R | M | | | | | | | | | 1 | 0 | = | = | = | = | 1 | 1 | = | = | = | = | = | = | = | = | |
--------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ||
| − | | 4 | | | | | | | + | | 4 | | | | | | 4 | = | = | = | 2 | = | = | |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | | |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------| | ||
| − | | R | M | | | | | | | | | | | | + | | R | M | | | | | | | | | | | 1 | 0 | = | = | = | = | = | = | 1 | 1 | = | = | = | = | |
--------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ||
| − | fallo | | + | fallo | X | | | X | X | X | X | | | X | | X | |
página ------------------------------------------------------------------------------------------------- | página ------------------------------------------------------------------------------------------------- | ||
tiempo -> | tiempo -> | ||
| + | |||
| + | 7 | ||
| + | talla de fallos de página = ------ = 0.583 | ||
| + | 12 | ||
| + | |||
| + | = NRU con 2º oportunidad = | ||
| + | |||
| + | Pendiente solución. | ||
| + | |||
| + | = LRU = | ||
| + | |||
| + | Pendiente solución. | ||
| + | |||
| + | = LFU = | ||
| + | |||
| + | Pendiente solución. | ||
| + | |||
| + | = Sustitución por envejecimiento = | ||
| + | |||
| + | Pendiente solución. | ||
Revisión del 21:45 6 jun 2011
FIFO
accesos a páginas
-------------------------------------------------------------------------
| 1 | 1 | 1 | 2 | 3 | 4 | 5 | 3 | 1 | 2 | 3 | 4 |
---------------------------------------------------------------------------------
| 1 | 1 | = | = | = | = | = | 5 | = | = | = | = | 4 |
---------------------------------------------------------------------------------
marcos | 2 | | | | 2 | = | = | = | = | 1 | = | = | = |
--------------------------------------------------------------------------------
| 3 | | | | | 3 | = | = | = | = | 2 | = | = |
---------------------------------------------------------------------------------
| 4 | | | | | | 4 | = | = | = | = | 3 | = |
---------------------------------------------------------------------------------
fallo | X | | | X | X | X | X | | X | X | X | X |
página -------------------------------------------------------------------------
tiempo ->
9
talla de fallos de página = ------ = 0.75
12
NRU
En caso de empate, se emplea LRU.
accesos a páginas
| r | r | w | r | r | r | r | w | w | w | r | r |
-------------------------------------------------------------------------------------------------
| 1 | 1 | 1 | 2 | 3 | 4 | 5 | 3 | 1 | 2 | 3 | 4 |
---------------------------------------------------------------------------------------------------------
| 1 | 1 | = | = | = | = | = | = | = | = | = | = | = |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
| R | M | 1 | 0 | = | = | 1 | 1 | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = | = |
---------------------------------------------------------------------------------------------------------
marcos | 2 | | | | 2 | = | = | 5 | = | = | = | = | 4 |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
| R | M | | | | | | | 1 | 0 | = | = | = | = | 1 | 0 | = | = | = | = | = | = | = | = | 1 | 0 |
---------------------------------------------------------------------------------------------------------
| 3 | | | | | 3 | = | = | 3 | = | = | = | = |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
| R | M | | | | | | | | | 1 | 0 | = | = | = | = | 1 | 1 | = | = | = | = | = | = | = | = |
---------------------------------------------------------------------------------------------------------
| 4 | | | | | | 4 | = | = | = | 2 | = | = |
| |-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|-------|
| R | M | | | | | | | | | | | 1 | 0 | = | = | = | = | = | = | 1 | 1 | = | = | = | = |
---------------------------------------------------------------------------------------------------------
fallo | X | | | X | X | X | X | | | X | | X |
página -------------------------------------------------------------------------------------------------
tiempo ->
7
talla de fallos de página = ------ = 0.583
12
NRU con 2º oportunidad
Pendiente solución.
LRU
Pendiente solución.
LFU
Pendiente solución.
Sustitución por envejecimiento
Pendiente solución.