1. A computer-implemented method, comprising, during execution of a first application: receiving, on behalf of said first application, a first memory request directed to a first virtual memory address; translating said first virtual memory address to a corresponding first physical address according to a first address translation technique; analyzing performance of said first application; dynamically selecting a second address translation technique for translating virtual memory addresses to corresponding physical memory addresses on behalf of said first application; and subsequent to said selecting a second address translation technique, receiving, on behalf of said first application, a second memory request directed to a second virtual memory address, and translating said second virtual memory address to a corresponding second physical address according to said second address translation technique; wherein said dynamically selecting a second address translation technique is dependent, at least in part, on a user policy and on results of said analyzing; and wherein said dynamically selecting and said translating according to said second address translation technique are performed transparently to said first application.
7. The method of claim 1 , further comprising, during said execution: selecting a third address translation technique for translating virtual addresses to corresponding physical addresses on behalf of a second application; subsequent to said selecting a third address translation technique, translating a third virtual memory address to a third physical memory address on behalf of said second application according to said third address translation technique; wherein said third address translation technique is different from one or more of said first address translation technique and said second address translation technique; and wherein said selecting said third address technique and said translating according to said third address translation technique are performed transparently to said first application.