Post Syndicated from corbet original https://lwn.net/Articles/974517/

The term “memory model” is used in a couple of ways within the kernel.
Perhaps the more obscure meaning is the memory-management subsystem’s view
of how physical memory is organized on a given system. A proper
representation of physical memory will be more efficient in terms of memory
and CPU use. Since hardware comes in numerous variations, the kernel
supports a number of memory models to match; see this article for details. At the 2024 Linux Storage,
Filesystem, Memory-Management and BPF Summit, Oscar Salvador,
presenting remotely, made the case for removing one of those models.