| ================= |
| Memory Management |
| ================= |
| |
| Linux memory management subsystem is responsible, as the name implies, |
| for managing the memory in the system. This includes implemnetation of |
| virtual memory and demand paging, memory allocation both for kernel |
| internal structures and user space programms, mapping of files into |
| processes address space and many other cool things. |
| |
| Linux memory management is a complex system with many configurable |
| settings. Most of these settings are available via ``/proc`` |
| filesystem and can be quired and adjusted using ``sysctl``. These APIs |
| are described in Documentation/admin-guide/sysctl/vm.rst and in `man 5 proc`_. |
| |
| .. _man 5 proc: http://man7.org/linux/man-pages/man5/proc.5.html |
| |
| Linux memory management has its own jargon and if you are not yet |
| familiar with it, consider reading |
| :ref:`Documentation/admin-guide/mm/concepts.rst <mm_concepts>`. |
| |
| Here we document in detail how to interact with various mechanisms in |
| the Linux memory management. |
| |
| .. toctree:: |
| :maxdepth: 1 |
| |
| concepts |
| cma_debugfs |
| hugetlbpage |
| idle_page_tracking |
| ksm |
| memory-hotplug |
| multigen_lru |
| nommu-mmap |
| numa_memory_policy |
| numaperf |
| pagemap |
| soft-dirty |
| transhuge |
| userfaultfd |