BestHub
Sign in
Bin's Tech Cabin
Bin's Tech Cabin
Nov 21, 2022 · Fundamentals

Inside Linux Physical Memory Management: From FLATMEM to NUMA, Watermarks, and Page Structures

This article provides an in‑depth, step‑by‑step explanation of how the Linux kernel organizes and manages physical memory, covering memory models (FLATMEM, DISCONTIGMEM, SPARSEMEM), NUMA vs. UMA architectures, zone partitioning, watermarks, reserved pages, hot‑cold page handling, and the detailed struct page layout used for both anonymous and file‑backed pages.

LinuxNUMAPage Allocation
0 likes · 99 min read
Inside Linux Physical Memory Management: From FLATMEM to NUMA, Watermarks, and Page Structures
Liangxu Linux
Liangxu Linux
Aug 3, 2020 · Fundamentals

Understanding Linux Memory Management: Segments, Paging, and Allocation

This article explains how Linux organizes a process's address space into text, data, and stack segments, describes virtual memory concepts such as paging, page tables, and page faults, and details the kernel's allocation, deallocation, and memory‑mapping mechanisms including brk, mmap, and the buddy allocator.

KernelLinuxPage Allocation
0 likes · 22 min read
Understanding Linux Memory Management: Segments, Paging, and Allocation