If ARC could be implemented in an efficient manner, it would. I'm guessing integrating these algorithms into existing kernel code is no small feat though. Also

If ARC could be implemented in an efficient manner, it would. I'm guessing integrating these algorithms into existing kernel code is no small feat though. Also, ARC may need to be tweaked so that its cost doesn't become prohibitive. That's one reason why the current memory manager isn't using LRU, but an approximation of it: http://en.wikipedia.org/wiki/Page_replacement_algorithm#Least_recently_used http://en.wikipedia.org/wiki/Page_replacement_algorithm#Leas...