Nomad: Non-Exclusive Memory Tiering via Transactional Page Migration

Explore a groundbreaking conference talk on non-exclusive memory tiering and transactional page migration. Delve into the innovative NOMAD system, which addresses performance issues in tiered memory management under pressure. Learn how this approach retains copies of recently promoted pages to mitigate memory thrashing, achieving up to 6x performance improvement over current Linux methods. Compare NOMAD with hardware-assisted migration techniques and understand its strengths and potential weaknesses in various scenarios. Gain insights into the future of memory management for byte-addressable devices like CXL memory, persistent memory, and storage-class memory.

OSDI '24 - Nomad: Non-Exclusive Memory Tiering via Transactional Page Migration