help2002

It's UWAweek 47

help2002

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UWA week 41 (2nd semester, week 11) ↓

Global LRU and Disk question (both)

6:15pm Mon 7th Oct, Chenjun H.

Hi The global least recently used policy only means that you have to evict the least recently used page if the program tries to bring a page already in memory, am I understanding that correctly? What is the purpose of the disk in this assignment? The pages don't actually store any information that needs to be persistent, which means that the simulation of the movement of pages can be just done using the RAM, my current solution doesn't implement any disk, is that OK? Thanks

Global LRU and Disk question (both)

7:16pm Mon 7th Oct, Joshua N.

"Chenjun Hou" <23*6*8*9@s*u*e*t*u*a*e*u*a*> wrote:

> Hi > > The global least recently used policy only means that you have to evict the least recently used page if the program tries to bring a page already in memory, am I understanding that correctly?

If you mean RAM is full and you are trying to load a new page onto RAM, so you need to use LRU algorithm to make room then yes.

> What is the purpose of the disk in this assignment? The pages don't actually store any information that needs to be persistent, which means that the simulation of the movement of pages can be just done using the RAM, my current solution doesn't implement any disk, is that OK?

I mean the program will still output what it is meant to (it will still work) but I'm not sure if Amitava will be fond of the solution.

> Thanks