The multi-generational LRU (MGLRU) is an
alternative memory-management algorithm that was merged for the 6.1 kernel
in late 2022. It brought a promise of much-improved performance and
simplified code. Since then, though, progress on MGLRU has stalled, and it still is not enabled on many systems. As the 2026 Linux Storage,
Filesystem, Memory-Management and BPF Summit (LSFMM+BPF) approaches,
several memory-management developers have indicated a desire to talk about
the future of MGLRU. While some developers are looking for ways to improve
the subsystem, another has called for it to be removed entirely.

https://lwn.net/Articles/1060967/
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