Optimizing the Page Hotness Measurement with Re-Fault Latency for Tiered Memory Systems

Constructing tiered memory systems becomes prevalent in cloud and datacenter servers due to its benefits on large capacity and low total cost of ownership. Since such tiered memory systems usually comprise low-latency memory (e.g., DRAM) and high-capacity but high-latency memory (e.g., Nonvolatile memory), accurately measuring the page hotness is one of the most important factors. This paper uncov...