From Perplexity with some prompting
The image illustrates a change in memory object management in recent Linux kernels, focusing on the transition from fixed-size page memory blocks to dynamic-size object memory blocks.
Left: Fixed-Size Page Memory Block
- Page Memory Block: Typically uses fixed-size blocks, generally 4KB in size.
- Meta Table: Managed by simple ID values (e.g., 1, 2, 3, 4, 5), allowing for straightforward and efficient control.
Right: Dynamic-Size Object Memory Block
Meta Table: Requires both ID values and sizes (e.g., (1, size), (2, size)), necessitating more complex computation and larger metadata tables.
Object Memory Block: Utilizes blocks of varying sizes to accommodate different memory object sizes.
This transition reflects a shift towards more flexible memory management, allowing for better utilization of memory resources by accommodating objects of different sizes. However, it also introduces increased complexity in managing these memory allocations.
Lechuck Park 