Linux Memory Management Documentation

This is a collection of documents about the Linux memory management (mm) subsystem internals with different level of details ranging from notes and mailing list responses for elaborating descriptions of data structures and algorithms. If you are looking for advice on simply allocating memory, see the Memory Allocation Guide. For controlling and tuning guides, see the admin guide.

• Active MM
• Architecture Page Table Helpers
• PTE Page Table Helpers
• PMD Page Table Helpers
• PUD Page Table Helpers
• HugeTLB Page Table Helpers
• SWAP Page Table Helpers
• Memory Balancing
• DAMON: Data Access MONitor
• Free Page Reporting
• Frontswap
• High Memory Handling
• Heterogeneous Memory Management (HMM)
• hwpoison
• Hugetlbfs Reservation
• Kernel Samepage Merging
• Physical Memory Model
• When do you need to notify inside page table lock ?
• What is NUMA?
• Overcommit Accounting
• Page migration
• Page fragments
• page owner: Tracking about who allocated each page
• Page Table Check
• remap_file_pages() system call
• Short users guide for SLUB
• Split page table lock
• Transparent Hugepage Support
• Unevictable LRU Infrastructure
• Virtually Mapped Kernel Stack Support
• z3fold
• zsmalloc