Hi all, I find a few interesting and promising projects that aim to do efficient access pattern-aware memory management of near future, including below (alphabetically sorted). - CXL hotness monitoring unit (https://lore.kernel.org/20241121101845.1815660-1-Jonathan.Cameron@xxxxxxxxxx) - Memory tiering fainess by per-cgroup control of promotion and demotion (https://lore.kernel.org/20241108190152.3587484-1-kaiyang2@xxxxxxxxxx) - Promotion of unmapped page cache folios (https://lore.kernel.org/20241210213744.2968-1-gourry@xxxxxxxxxx) - Slow-tier page promotion based on PTE A bit (https://lore.kernel.org/20241201153818.2633616-1-raghavendra.kt@xxxxxxx) - Workingset reporting (https://lore.kernel.org/20241127025728.3689245-1-yuanchu@xxxxxxxxxx) The goal of DAMON is to help accelerating such developments by being a framework that can reduce fundamental efforts for monitoring memory access patterns and managing memory using the information. AWS Aurora Serverless v2 and SK hynix are successfully using DAMON in the way for proactive memory reclamation[1] and CXL memory tiering[2]. To further deliver such benefits for the ongoing and future projects, we need to better understand what the projects really need, how DAMON can provide those now or in future, and if there are alternatives better than DAMON. Regardless of the conclusion about DAMON, the works apparently have common parts, so the discussion will benefit all. I propose to have the discussion at LSF/MM/BPF. In the session, I will briefly introduce the works and possible DAMON usages, and continue the open discussion for better understanding each other. The discussion will not be limited to DAMON and abovely mentioned projects but possible alternatives and general access-aware memory management projects. After the discussion, we will hopefully find ways to efficiently collaborate, or at least do not disturb each other. [1] https://assets.amazon.science/ee/a4/41ff11374f2f865e5e24de11bd17/resource-management-in-aurora-serverless.pdf [2] https://github.com/skhynix/hmsdk/wiki/Capacity-Expansion Thanks, SJ
