Lines Matching +full:use +full:- +full:minimum +full:- +full:ecc
1 # SPDX-License-Identifier: GPL-2.0-only
25 This option is best suited for non-NUMA systems with
56 memory hot-plug systems. This is normal.
60 hot-plug and hot-remove.
72 File-LRU is a mechanism that put file page in global lru list,
89 background. When the use of swap pages reaches the watermark
103 Memory reclaim delay accounting. Never use it as a kernel module.
122 # Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's
180 # Keep arch NUMA mapping infrastructure post-init.
196 bool "Allow for memory hot-add"
215 See Documentation/admin-guide/mm/memory-hotplug.rst for more information.
217 Say Y here if you want all hot-plugged memory blocks to appear in
219 Say N here if you want the default policy to keep all hot-plugged
228 # Heavily threaded applications may benefit from splitting the mm-wide
232 # ARM's adjust_pte (unused if VIPT) depends on mm-wide page_table_lock.
233 # PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
235 # a per-page lock leads to problems when multiple tables need to be locked
285 linux-mm@kvack.org.
358 Recommended for use with KVM, or with other duplicative applications.
375 Programs which use vm86 functionality or have some need to map
395 special hardware support and typically ECC memory.
409 allocator for chunks in 2^N*PAGE_SIZE amounts - which is frequently
418 long-term mappings means that the space is wasted.
421 (/proc/sys/vm/nr_trim_pages) which specifies the minimum number of
428 See Documentation/admin-guide/mm/nommu-mmap.rst for more information.
436 Transparent Hugepages allows the kernel to use huge pages and
483 # UP and nommu archs use km based percpu allocator
493 Cleancache can be thought of as a page-granularity victim cache
496 memory. So when the PFRA "evicts" a page, it first attempts to use
500 time-varying size. And when a cleancache-enabled
507 are reduced to a single pointer-compare-against-NULL resulting
520 time-varying size. When space in transcendent memory is available,
522 available, all frontswap calls are reduced to a single pointer-
523 compare-against-NULL resulting in a negligible performance hit
535 subsystems to allocate big physically-contiguous blocks of memory.
537 be allocated from it. This way, the kernel can use the memory for
575 allocations with __GFP_CMA flag will use cma areas prior to
586 soft-dirty bit on pte-s. This bit it set when someone writes
590 See Documentation/admin-guide/mm/soft-dirty.rst for more details.
599 compress them into a dynamically allocated RAM-based memory pool.
632 Use the Deflate algorithm as the default compression algorithm.
638 Use the LZO algorithm as the default compression algorithm.
644 Use the 842 algorithm as the default compression algorithm.
650 Use the LZ4 algorithm as the default compression algorithm.
656 Use the LZ4HC algorithm as the default compression algorithm.
662 Use the zstd algorithm as the default compression algorithm.
694 Use the zbud allocator as the default allocator.
700 Use the z3fold allocator as the default allocator.
706 Use the zsmalloc allocator as the default allocator.
755 zsmalloc is a slab-based memory allocator designed to store
758 non-standard allocator interface where a handle, not a pointer, is
776 int "Maximum user stack size for 32-bit processes (MB)"
781 This is the maximum stack size in Megabytes in the VM layout of 32-bit
814 See Documentation/admin-guide/mm/idle_page_tracking.rst for
832 "device-physical" addresses which is needed for using a DAX
888 bool "Read-only THP for filesystems (EXPERIMENTAL)"
892 Allow khugepaged to put read-only file-backed pages in THP.
928 # For lmkd to trigger in-kernel lowmem info
952 # Use rss_threshold to monitoring RSS