LFU and WorkingSets

[mehdi62b]

Hi experts,
I have two questions,

in Page Replacement methods, one of them is Least Frequently Use...now I want to know is there any other method to solve the failures of this method?


we know OS's should distinguish Working Sets I wanted to know how an Operating System could distinguish them?

I can't find any link in this regard..

[mehdi62b]

LRFU (http://www.cs.biu.ac.il/~wiseman/2os/arc/lrfu.pdf)


Working Set Selection (http://www.csie.ntu.edu.tw/~cjlin/papers/quadworkset.pdf)