Solución ejercicio 1 memoria virtual

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.