Provided by: manpages_6.8-2_all 
NAME
/proc/vmstat - virtual memory statistics
DESCRIPTION
/proc/vmstat (since Linux 2.6.0) This file displays various virtual memory statistics. Each line of this file contains a single name-value pair, delimited by white space. Some lines are present only if the kernel was configured with suitable options. (In some cases, the options required for particular files have changed across kernel versions, so they are not listed here. Details can be found by consulting the kernel source code.) The following fields may be present: nr_free_pages (since Linux 2.6.31) nr_alloc_batch (since Linux 3.12) nr_inactive_anon (since Linux 2.6.28) nr_active_anon (since Linux 2.6.28) nr_inactive_file (since Linux 2.6.28) nr_active_file (since Linux 2.6.28) nr_unevictable (since Linux 2.6.28) nr_mlock (since Linux 2.6.28) nr_anon_pages (since Linux 2.6.18) nr_mapped (since Linux 2.6.0) nr_file_pages (since Linux 2.6.18) nr_dirty (since Linux 2.6.0) nr_writeback (since Linux 2.6.0) nr_slab_reclaimable (since Linux 2.6.19) nr_slab_unreclaimable (since Linux 2.6.19) nr_page_table_pages (since Linux 2.6.0) nr_kernel_stack (since Linux 2.6.32) Amount of memory allocated to kernel stacks. nr_unstable (since Linux 2.6.0) nr_bounce (since Linux 2.6.12) nr_vmscan_write (since Linux 2.6.19) nr_vmscan_immediate_reclaim (since Linux 3.2) nr_writeback_temp (since Linux 2.6.26) nr_isolated_anon (since Linux 2.6.32) nr_isolated_file (since Linux 2.6.32) nr_shmem (since Linux 2.6.32) Pages used by shmem and tmpfs(5). nr_dirtied (since Linux 2.6.37) nr_written (since Linux 2.6.37) nr_pages_scanned (since Linux 3.17) numa_hit (since Linux 2.6.18) numa_miss (since Linux 2.6.18) numa_foreign (since Linux 2.6.18) numa_interleave (since Linux 2.6.18) numa_local (since Linux 2.6.18) numa_other (since Linux 2.6.18) workingset_refault (since Linux 3.15) workingset_activate (since Linux 3.15) workingset_nodereclaim (since Linux 3.15) nr_anon_transparent_hugepages (since Linux 2.6.38) nr_free_cma (since Linux 3.7) Number of free CMA (Contiguous Memory Allocator) pages. nr_dirty_threshold (since Linux 2.6.37) nr_dirty_background_threshold (since Linux 2.6.37) pgpgin (since Linux 2.6.0) pgpgout (since Linux 2.6.0) pswpin (since Linux 2.6.0) pswpout (since Linux 2.6.0) pgalloc_dma (since Linux 2.6.5) pgalloc_dma32 (since Linux 2.6.16) pgalloc_normal (since Linux 2.6.5) pgalloc_high (since Linux 2.6.5) pgalloc_movable (since Linux 2.6.23) pgfree (since Linux 2.6.0) pgactivate (since Linux 2.6.0) pgdeactivate (since Linux 2.6.0) pgfault (since Linux 2.6.0) pgmajfault (since Linux 2.6.0) pgrefill_dma (since Linux 2.6.5) pgrefill_dma32 (since Linux 2.6.16) pgrefill_normal (since Linux 2.6.5) pgrefill_high (since Linux 2.6.5) pgrefill_movable (since Linux 2.6.23) pgsteal_kswapd_dma (since Linux 3.4) pgsteal_kswapd_dma32 (since Linux 3.4) pgsteal_kswapd_normal (since Linux 3.4) pgsteal_kswapd_high (since Linux 3.4) pgsteal_kswapd_movable (since Linux 3.4) pgsteal_direct_dma pgsteal_direct_dma32 (since Linux 3.4) pgsteal_direct_normal (since Linux 3.4) pgsteal_direct_high (since Linux 3.4) pgsteal_direct_movable (since Linux 2.6.23) pgscan_kswapd_dma pgscan_kswapd_dma32 (since Linux 2.6.16) pgscan_kswapd_normal (since Linux 2.6.5) pgscan_kswapd_high pgscan_kswapd_movable (since Linux 2.6.23) pgscan_direct_dma pgscan_direct_dma32 (since Linux 2.6.16) pgscan_direct_normal pgscan_direct_high pgscan_direct_movable (since Linux 2.6.23) pgscan_direct_throttle (since Linux 3.6) zone_reclaim_failed (since linux 2.6.31) pginodesteal (since linux 2.6.0) slabs_scanned (since linux 2.6.5) kswapd_inodesteal (since linux 2.6.0) kswapd_low_wmark_hit_quickly (since Linux 2.6.33) kswapd_high_wmark_hit_quickly (since Linux 2.6.33) pageoutrun (since Linux 2.6.0) allocstall (since Linux 2.6.0) pgrotated (since Linux 2.6.0) drop_pagecache (since Linux 3.15) drop_slab (since Linux 3.15) numa_pte_updates (since Linux 3.8) numa_huge_pte_updates (since Linux 3.13) numa_hint_faults (since Linux 3.8) numa_hint_faults_local (since Linux 3.8) numa_pages_migrated (since Linux 3.8) pgmigrate_success (since Linux 3.8) pgmigrate_fail (since Linux 3.8) compact_migrate_scanned (since Linux 3.8) compact_free_scanned (since Linux 3.8) compact_isolated (since Linux 3.8) compact_stall (since Linux 2.6.35) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. compact_fail (since Linux 2.6.35) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. compact_success (since Linux 2.6.35) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. htlb_buddy_alloc_success (since Linux 2.6.26) htlb_buddy_alloc_fail (since Linux 2.6.26) unevictable_pgs_culled (since Linux 2.6.28) unevictable_pgs_scanned (since Linux 2.6.28) unevictable_pgs_rescued (since Linux 2.6.28) unevictable_pgs_mlocked (since Linux 2.6.28) unevictable_pgs_munlocked (since Linux 2.6.28) unevictable_pgs_cleared (since Linux 2.6.28) unevictable_pgs_stranded (since Linux 2.6.28) thp_fault_alloc (since Linux 2.6.39) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_fault_fallback (since Linux 2.6.39) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_collapse_alloc (since Linux 2.6.39) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_collapse_alloc_failed (since Linux 2.6.39) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_split (since Linux 2.6.39) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_zero_page_alloc (since Linux 3.8) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. thp_zero_page_alloc_failed (since Linux 3.8) See the kernel source file Documentation/admin-guide/mm/transhuge.rst. balloon_inflate (since Linux 3.18) balloon_deflate (since Linux 3.18) balloon_migrate (since Linux 3.18) nr_tlb_remote_flush (since Linux 3.12) nr_tlb_remote_flush_received (since Linux 3.12) nr_tlb_local_flush_all (since Linux 3.12) nr_tlb_local_flush_one (since Linux 3.12) vmacache_find_calls (since Linux 3.16) vmacache_find_hits (since Linux 3.16) vmacache_full_flushes (since Linux 3.19)
SEE ALSO
proc(5)