page-replacement

Explain CPU cache paging in FreeBSD, specifically paging queues

FreeBSD implements page coloring with paging queues. The queues are arranged according to the size of the processor’s L1 and L2 caches; and when a new page needs to be allocated, FreeBSD tries to get one that is optimally aligned for the cache. Can somebody please explain the above lines, what is the concept of paging qu...

Using Ajax to Replace A Page Element Based on an Onclick Event

I'm reformulating this question as I'm understanding the issue better now. I have an application with four models: Users, Products, Varieties and Seasons. User has_many :seasons has_many :products, :through => :seasons has_many :varieties, :through => :seasons Product has_many :seasons has_many :users, :through => :seasons has...