Index

A complete listing of all documentation, organized by topic.

General

Page	Description
Home	Introduction and overview
Linux Evolution	From hobby project to world infrastructure

Page	Description
Getting Started	Prerequisites, setup, and reading order
Overview	The 30-year story of Linux memory management

Page	Description
Page Allocator	Buddy system - physical page management
kmalloc (SLUB)	kmalloc/kfree, size classes, kvmalloc
vmalloc	Virtually contiguous allocation
NUMA	Multi-node memory management

Page	Description
Page Tables	Virtual-to-physical address translation
Process Address Space	VMAs, mmap, demand paging, COW

Page	Description
Page Cache	File data caching and writeback
Page Reclaim	LRU, kswapd, MGLRU, OOM killer
Swap	Extending memory to disk (zswap, zram)

Page	Description
Memory Cgroups	Container memory limits (v1/v2)
Transparent Huge Pages	Automatic 2MB/1GB pages
Compaction	Memory defragmentation
KSM	Page deduplication for VMs
vrealloc	Resizing vmalloc allocations

Page	Description
Virtual vs Physical vs Resident	Understanding VSZ, RSS, PSS, and USS
Memory Overcommit	Why it's the only sane default
brk vs mmap	Two ways to get memory from the kernel
Contiguous Memory	Why large allocations fail despite free memory
Copy-on-Write	COW edge cases and when it breaks

Page	Description
Glossary	Terminology reference

Resource	Description
Official Kernel Docs	Authoritative kernel documentation
LKML Archive	Linux kernel mailing list archive
Kernel Source	Official git repositories