UniMem - Redesigning Disaggregated Memory within a Unified Local-Remote Memory Hierarchy

Explore a 20-minute conference talk from USENIX ATC '24 that delves into UniMem, an innovative approach to redesigning disaggregated memory within a unified local-remote memory hierarchy. Learn how researchers from Xiamen University and Minjiang University tackle the challenges of scaling memory capacity through disaggregated memory (DM) systems. Discover how UniMem removes the extra address translation layer for remote memory access in cache-coherent-based DM systems, optimizes local memory utilization, and implements an intelligent page migration mechanism. Gain insights into how this novel approach reduces average memory access time by up to 76.4% and significantly improves data amplification compared to state-of-the-art systems. Understand the intricacies of cache thrashing, pollution prevention, and hotness fragmentation in the context of disaggregated memory architectures.