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| Original file line number | Diff line number | Diff line change |
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| # Kernel VMStat Input Plugin | ||
|
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||
| This plugin is only available on Linux. | ||
|
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||
| The kernel_vmstat plugin gathers info about the kernel that doesn't fit into other | ||
| plugins. In general, it is the statistics available in `/proc/vmstat` that are | ||
| not covered by other plugins. | ||
|
|
||
| The metrics are documented in `man proc` under the `/proc/vmstat` section. | ||
|
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| ``` | ||
| /proc/vmstat | ||
| kernel/system statistics. Common entries include (from http://www.linuxinsight.com/proc_vmstat.html): | ||
| Number of pages that are dirty, under writeback or unstable: | ||
| nr_dirty 1550 | ||
| nr_writeback 0 | ||
| nr_unstable 0 | ||
| Number of pages allocated to page tables, mapped by files or allocated by the kernel slab allocator: | ||
| nr_page_table_pages 699 | ||
| nr_mapped 139596 | ||
| nr_slab 42723 | ||
| Number of pageins and pageouts (since the last boot): | ||
| pgpgin 33754195 | ||
| pgpgout 38985992 | ||
| Number of swapins and swapouts (since the last boot): | ||
| pswpin 2473 | ||
| pswpout 2995 | ||
| Number of page allocations per zone (since the last boot): | ||
| pgalloc_high 0 | ||
| pgalloc_normal 110123213 | ||
| pgalloc_dma32 0 | ||
| pgalloc_dma 415219 | ||
| Number of page frees, activations and deactivations (since the last boot): | ||
| pgfree 110549163 | ||
| pgactivate 4509729 | ||
| pgdeactivate 2136215 | ||
| Number of minor and major page faults (since the last boot): | ||
| pgfault 80663722 | ||
| pgmajfault 49813 | ||
| Number of page refills (per zone, since the last boot): | ||
| pgrefill_high 0 | ||
| pgrefill_normal 5817500 | ||
| pgrefill_dma32 0 | ||
| pgrefill_dma 149176 | ||
| Number of page steals (per zone, since the last boot): | ||
| pgsteal_high 0 | ||
| pgsteal_normal 10421346 | ||
| pgsteal_dma32 0 | ||
| pgsteal_dma 142196 | ||
| Number of pages scanned by the kswapd daemon (per zone, since the last boot): | ||
| pgscan_kswapd_high 0 | ||
| pgscan_kswapd_normal 10491424 | ||
| pgscan_kswapd_dma32 0 | ||
| pgscan_kswapd_dma 156130 | ||
| Number of pages reclaimed directly (per zone, since the last boot): | ||
| pgscan_direct_high 0 | ||
| pgscan_direct_normal 11904 | ||
| pgscan_direct_dma32 0 | ||
| pgscan_direct_dma 225 | ||
| Number of pages reclaimed via inode freeing (since the last boot): | ||
| pginodesteal 11 | ||
| Number of slab objects scanned (since the last boot): | ||
| slabs_scanned 8926976 | ||
| Number of pages reclaimed by kswapd (since the last boot): | ||
| kswapd_steal 10551674 | ||
| Number of pages reclaimed by kswapd via inode freeing (since the last boot): | ||
| kswapd_inodesteal 338730 | ||
| Number of kswapd's calls to page reclaim (since the last boot): | ||
| pageoutrun 181908 | ||
| Number of direct reclaim calls (since the last boot): | ||
| allocstall 160 | ||
| Miscellaneous statistics: | ||
| pgrotated 3781 | ||
| nr_bounce 0 | ||
| ``` | ||
|
|
||
| ### Configuration: | ||
|
|
||
| ```toml | ||
| # Get kernel statistics from /proc/vmstat | ||
| [[inputs.kernel_vmstat]] | ||
| # no configuration | ||
| ``` | ||
|
|
||
| ### Measurements & Fields: | ||
|
|
||
| - kernel_vmstat | ||
| - nr_free_pages (integer, `nr_free_pages`) | ||
| - nr_inactive_anon (integer, `nr_inactive_anon`) | ||
| - nr_active_anon (integer, `nr_active_anon`) | ||
| - nr_inactive_file (integer, `nr_inactive_file`) | ||
| - nr_active_file (integer, `nr_active_file`) | ||
| - nr_unevictable (integer, `nr_unevictable`) | ||
| - nr_mlock (integer, `nr_mlock`) | ||
| - nr_anon_pages (integer, `nr_anon_pages`) | ||
| - nr_mapped (integer, `nr_mapped`) | ||
| - nr_file_pages (integer, `nr_file_pages`) | ||
| - nr_dirty (integer, `nr_dirty`) | ||
| - nr_writeback (integer, `nr_writeback`) | ||
| - nr_slab_reclaimable (integer, `nr_slab_reclaimable`) | ||
| - nr_slab_unreclaimable (integer, `nr_slab_unreclaimable`) | ||
| - nr_page_table_pages (integer, `nr_page_table_pages`) | ||
| - nr_kernel_stack (integer, `nr_kernel_stack`) | ||
| - nr_unstable (integer, `nr_unstable`) | ||
| - nr_bounce (integer, `nr_bounce`) | ||
| - nr_vmscan_write (integer, `nr_vmscan_write`) | ||
| - nr_writeback_temp (integer, `nr_writeback_temp`) | ||
| - nr_isolated_anon (integer, `nr_isolated_anon`) | ||
| - nr_isolated_file (integer, `nr_isolated_file`) | ||
| - nr_shmem (integer, `nr_shmem`) | ||
| - numa_hit (integer, `numa_hit`) | ||
| - numa_miss (integer, `numa_miss`) | ||
| - numa_foreign (integer, `numa_foreign`) | ||
| - numa_interleave (integer, `numa_interleave`) | ||
| - numa_local (integer, `numa_local`) | ||
| - numa_other (integer, `numa_other`) | ||
| - nr_anon_transparent_hugepages (integer, `nr_anon_transparent_hugepages`) | ||
| - pgpgin (integer, `pgpgin`) | ||
| - pgpgout (integer, `pgpgout`) | ||
| - pswpin (integer, `pswpin`) | ||
| - pswpout (integer, `pswpout`) | ||
| - pgalloc_dma (integer, `pgalloc_dma`) | ||
| - pgalloc_dma32 (integer, `pgalloc_dma32`) | ||
| - pgalloc_normal (integer, `pgalloc_normal`) | ||
| - pgalloc_movable (integer, `pgalloc_movable`) | ||
| - pgfree (integer, `pgfree`) | ||
| - pgactivate (integer, `pgactivate`) | ||
| - pgdeactivate (integer, `pgdeactivate`) | ||
| - pgfault (integer, `pgfault`) | ||
| - pgmajfault (integer, `pgmajfault`) | ||
| - pgrefill_dma (integer, `pgrefill_dma`) | ||
| - pgrefill_dma32 (integer, `pgrefill_dma32`) | ||
| - pgrefill_normal (integer, `pgrefill_normal`) | ||
| - pgrefill_movable (integer, `pgrefill_movable`) | ||
| - pgsteal_dma (integer, `pgsteal_dma`) | ||
| - pgsteal_dma32 (integer, `pgsteal_dma32`) | ||
| - pgsteal_normal (integer, `pgsteal_normal`) | ||
| - pgsteal_movable (integer, `pgsteal_movable`) | ||
| - pgscan_kswapd_dma (integer, `pgscan_kswapd_dma`) | ||
| - pgscan_kswapd_dma32 (integer, `pgscan_kswapd_dma32`) | ||
| - pgscan_kswapd_normal (integer, `pgscan_kswapd_normal`) | ||
| - pgscan_kswapd_movable (integer, `pgscan_kswapd_movable`) | ||
| - pgscan_direct_dma (integer, `pgscan_direct_dma`) | ||
| - pgscan_direct_dma32 (integer, `pgscan_direct_dma32`) | ||
| - pgscan_direct_normal (integer, `pgscan_direct_normal`) | ||
| - pgscan_direct_movable (integer, `pgscan_direct_movable`) | ||
| - zone_reclaim_failed (integer, `zone_reclaim_failed`) | ||
| - pginodesteal (integer, `pginodesteal`) | ||
| - slabs_scanned (integer, `slabs_scanned`) | ||
| - kswapd_steal (integer, `kswapd_steal`) | ||
| - kswapd_inodesteal (integer, `kswapd_inodesteal`) | ||
| - kswapd_low_wmark_hit_quickly (integer, `kswapd_low_wmark_hit_quickly`) | ||
| - kswapd_high_wmark_hit_quickly (integer, `kswapd_high_wmark_hit_quickly`) | ||
| - kswapd_skip_congestion_wait (integer, `kswapd_skip_congestion_wait`) | ||
| - pageoutrun (integer, `pageoutrun`) | ||
| - allocstall (integer, `allocstall`) | ||
| - pgrotated (integer, `pgrotated`) | ||
| - compact_blocks_moved (integer, `compact_blocks_moved`) | ||
| - compact_pages_moved (integer, `compact_pages_moved`) | ||
| - compact_pagemigrate_failed (integer, `compact_pagemigrate_failed`) | ||
| - compact_stall (integer, `compact_stall`) | ||
| - compact_fail (integer, `compact_fail`) | ||
| - compact_success (integer, `compact_success`) | ||
| - htlb_buddy_alloc_success (integer, `htlb_buddy_alloc_success`) | ||
| - htlb_buddy_alloc_fail (integer, `htlb_buddy_alloc_fail`) | ||
| - unevictable_pgs_culled (integer, `unevictable_pgs_culled`) | ||
| - unevictable_pgs_scanned (integer, `unevictable_pgs_scanned`) | ||
| - unevictable_pgs_rescued (integer, `unevictable_pgs_rescued`) | ||
| - unevictable_pgs_mlocked (integer, `unevictable_pgs_mlocked`) | ||
| - unevictable_pgs_munlocked (integer, `unevictable_pgs_munlocked`) | ||
| - unevictable_pgs_cleared (integer, `unevictable_pgs_cleared`) | ||
| - unevictable_pgs_stranded (integer, `unevictable_pgs_stranded`) | ||
| - unevictable_pgs_mlockfreed (integer, `unevictable_pgs_mlockfreed`) | ||
| - thp_fault_alloc (integer, `thp_fault_alloc`) | ||
| - thp_fault_fallback (integer, `thp_fault_fallback`) | ||
| - thp_collapse_alloc (integer, `thp_collapse_alloc`) | ||
| - thp_collapse_alloc_failed (integer, `thp_collapse_alloc_failed`) | ||
| - thp_split (integer, `thp_split`) | ||
|
|
||
| ### Tags: | ||
|
|
||
| None | ||
|
|
||
| ### Example Output: | ||
|
|
||
| ``` | ||
| $ telegraf -config ~/ws/telegraf.conf -input-filter kernel_vmstat -test | ||
| * Plugin: kernel_vmstat, Collection 1 | ||
| > kernel_vmstat allocstall=81496i,compact_blocks_moved=238196i,compact_fail=135220i,compact_pagemigrate_failed=0i,compact_pages_moved=6370588i,compact_stall=142092i,compact_success=6872i,htlb_buddy_alloc_fail=0i,htlb_buddy_alloc_success=0i,kswapd_high_wmark_hit_quickly=25439i,kswapd_inodesteal=29770874i,kswapd_low_wmark_hit_quickly=8756i,kswapd_skip_congestion_wait=0i,kswapd_steal=291534428i,nr_active_anon=2515657i,nr_active_file=2244914i,nr_anon_pages=1358675i,nr_anon_transparent_hugepages=2034i,nr_bounce=0i,nr_dirty=5690i,nr_file_pages=5153546i,nr_free_pages=78730i,nr_inactive_anon=426259i,nr_inactive_file=2366791i,nr_isolated_anon=0i,nr_isolated_file=0i,nr_kernel_stack=579i,nr_mapped=558821i,nr_mlock=0i,nr_page_table_pages=11115i,nr_shmem=541689i,nr_slab_reclaimable=459806i,nr_slab_unreclaimable=47859i,nr_unevictable=0i,nr_unstable=0i,nr_vmscan_write=6206i,nr_writeback=0i,nr_writeback_temp=0i,numa_foreign=0i,numa_hit=5113399878i,numa_interleave=35793i,numa_local=5113399878i,numa_miss=0i,numa_other=0i,pageoutrun=505006i,pgactivate=375664931i,pgalloc_dma=0i,pgalloc_dma32=122480220i,pgalloc_movable=0i,pgalloc_normal=5233176719i,pgdeactivate=122735906i,pgfault=8699921410i,pgfree=5359765021i,pginodesteal=9188431i,pgmajfault=122210i,pgpgin=219717626i,pgpgout=3495885510i,pgrefill_dma=0i,pgrefill_dma32=1180010i,pgrefill_movable=0i,pgrefill_normal=119866676i,pgrotated=60620i,pgscan_direct_dma=0i,pgscan_direct_dma32=12256i,pgscan_direct_movable=0i,pgscan_direct_normal=31501600i,pgscan_kswapd_dma=0i,pgscan_kswapd_dma32=4480608i,pgscan_kswapd_movable=0i,pgscan_kswapd_normal=287857984i,pgsteal_dma=0i,pgsteal_dma32=4466436i,pgsteal_movable=0i,pgsteal_normal=318463755i,pswpin=2092i,pswpout=6206i,slabs_scanned=93775616i,thp_collapse_alloc=24857i,thp_collapse_alloc_failed=102214i,thp_fault_alloc=346219i,thp_fault_fallback=895453i,thp_split=9817i,unevictable_pgs_cleared=0i,unevictable_pgs_culled=1531i,unevictable_pgs_mlocked=6988i,unevictable_pgs_mlockfreed=0i,unevictable_pgs_munlocked=6988i,unevictable_pgs_rescued=5426i,unevictable_pgs_scanned=0i,unevictable_pgs_stranded=0i,zone_reclaim_failed=0i 1459455200071462843 | ||
| ``` |
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