Overview of Memory Reclaim in the Current Upstream Kernel

Overview of Memory Reclaim in the Current Upstream Kernel

Explore the intricacies of memory reclaim in the current upstream Linux kernel through this comprehensive conference talk. Delve into the fundamentals of memory reclaim, its various types, and the process of capturing all pages. Examine the state diagram and understand the reclaim round, including the handling of active and inactive pages. Learn about page table excess bits, working set detection, and implementation details for both working set and nonmcg reclaim. Investigate corner case decisions, the fractional cost model, and advice reclaims. Conclude with insights on multigenerational RRU and a summary of key points, providing a thorough understanding of memory management in the Linux kernel.