Georgia Institute of Technology
Many new non-volatile memory technologies have been considered as a future scalable alternative to DRAM. Memory technologies such as MRAM, FeRAM, PCM have emerged as the most viable alternatives. But these memories have limited wear endurance. Practically realizable main memory systems employing these memory technologies are possible only if the wear across these memories is reduced as well as uniformly distributed. Limited endurance has resulted in extensive wear leveling research with the goal of uniformly distributing write traffic throughout available physical memory.