Linux memory metricset
Warning
This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.
The memory metricset extends system/memory and adds linux-specific memory metrics, including Huge Pages and overall paging statistics.
Note
as of now, this data is part of system/memory on Metricbeat, but can only be found in the Linux integration in Fleet. In the future, this data will be removed from system/memory.
This is a default metricset. If the host module is unconfigured, this metricset is enabled by default.
For a description of each field in the metricset, see the exported fields section.
Here is an example document generated by this metricset:
{
"@timestamp": "2017-10-12T08:05:34.853Z",
"event": {
"dataset": "linux.memory",
"duration": 115000,
"module": "linux"
},
"linux": {
"memory": {
"hugepages": {
"default_size": 2097152,
"free": 0,
"reserved": 0,
"surplus": 0,
"swap": {
"out": {
"fallback": 0,
"pages": 0
}
},
"total": 0,
"used": {
"bytes": 0,
"pct": 0
}
},
"page_stats": {
"direct_efficiency": {
"pct": 0.3419
},
"kswapd_efficiency": {
"pct": 0.8922
},
"pgfree": {
"pages": 16328309361
},
"pgscan_direct": {
"pages": 21037589
},
"pgscan_kswapd": {
"pages": 49831
},
"pgsteal_direct": {
"pages": 7193725
},
"pgsteal_kswapd": {
"pages": 44459
}
},
"swap": {
"free": 8586252288,
"in": {
"pages": 72435
},
"out": {
"pages": 2032475
},
"readahead": {
"cached": 5,
"pages": 29
},
"total": 8589930496,
"used": {
"bytes": 3678208,
"pct": 0.0004
}
},
"vmstat": {
"allocstall_dma": 0,
"allocstall_dma32": 0,
"allocstall_movable": 60572,
"allocstall_normal": 1125,
"balloon_deflate": 0,
"balloon_inflate": 0,
"balloon_migrate": 0,
"cma_alloc_fail": 0,
"cma_alloc_success": 0,
"compact_daemon_free_scanned": 0,
"compact_daemon_migrate_scanned": 0,
"compact_daemon_wake": 2,
"compact_fail": 0,
"compact_free_scanned": 406096,
"compact_isolated": 15241,
"compact_migrate_scanned": 51056,
"compact_stall": 0,
"compact_success": 0,
"direct_map_level2_splits": 864,
"direct_map_level3_splits": 52,
"drop_pagecache": 0,
"drop_slab": 0,
"htlb_buddy_alloc_fail": 0,
"htlb_buddy_alloc_success": 0,
"kswapd_high_wmark_hit_quickly": 0,
"kswapd_inodesteal": 2,
"kswapd_low_wmark_hit_quickly": 1,
"nr_active_anon": 5553,
"nr_active_file": 1478109,
"nr_anon_pages": 1024369,
"nr_anon_transparent_hugepages": 140,
"nr_bounce": 0,
"nr_dirtied": 87806596,
"nr_dirty": 60,
"nr_dirty_background_threshold": 1339484,
"nr_dirty_threshold": 2682244,
"nr_file_hugepages": 0,
"nr_file_pages": 5302193,
"nr_file_pmdmapped": 0,
"nr_foll_pin_acquired": 2,
"nr_foll_pin_released": 2,
"nr_free_cma": 0,
"nr_free_pages": 8219610,
"nr_inactive_anon": 1046105,
"nr_inactive_file": 3825289,
"nr_isolated_anon": 0,
"nr_isolated_file": 0,
"nr_kernel_misc_reclaimable": 0,
"nr_kernel_stack": 14144,
"nr_mapped": 191441,
"nr_mlock": 0,
"nr_page_table_pages": 6756,
"nr_shmem": 9446,
"nr_shmem_hugepages": 0,
"nr_shmem_pmdmapped": 0,
"nr_slab_reclaimable": 362837,
"nr_slab_unreclaimable": 167630,
"nr_swapcached": 2,
"nr_throttled_written": 0,
"nr_unevictable": 768,
"nr_unstable": 0,
"nr_vmscan_immediate_reclaim": 10,
"nr_vmscan_write": 2032594,
"nr_writeback": 0,
"nr_writeback_temp": 0,
"nr_written": 77862049,
"nr_zone_active_anon": 5553,
"nr_zone_active_file": 1478109,
"nr_zone_inactive_anon": 1046105,
"nr_zone_inactive_file": 3825289,
"nr_zone_unevictable": 768,
"nr_zone_write_pending": 60,
"nr_zspages": 477,
"numa_foreign": 0,
"numa_hint_faults": 0,
"numa_hint_faults_local": 0,
"numa_hit": 16320172649,
"numa_huge_pte_updates": 0,
"numa_interleave": 2819,
"numa_local": 16319863485,
"numa_miss": 0,
"numa_other": 0,
"numa_pages_migrated": 0,
"numa_pte_updates": 0,
"oom_kill": 0,
"pageoutrun": 2,
"pgactivate": 49439150,
"pgalloc_dma": 1024,
"pgalloc_dma32": 819165,
"pgalloc_movable": 0,
"pgalloc_normal": 16318820409,
"pgdeactivate": 2560804,
"pgdemote_direct": 0,
"pgdemote_kswapd": 0,
"pgfault": 19447993645,
"pgfree": 16328309361,
"pginodesteal": 677,
"pglazyfree": 40011,
"pglazyfreed": 4375,
"pgmajfault": 112209,
"pgmigrate_fail": 778,
"pgmigrate_success": 7169,
"pgpgin": 28240034,
"pgpgout": 472429900,
"pgrefill": 2602042,
"pgreuse": 742840224,
"pgrotated": 316,
"pgscan_anon": 15494945,
"pgscan_direct": 21037589,
"pgscan_direct_throttle": 0,
"pgscan_file": 5592475,
"pgscan_kswapd": 49831,
"pgskip_dma": 0,
"pgskip_dma32": 0,
"pgskip_movable": 0,
"pgskip_normal": 0,
"pgsteal_anon": 2032475,
"pgsteal_direct": 7193725,
"pgsteal_file": 5205709,
"pgsteal_kswapd": 44459,
"pswpin": 72435,
"pswpout": 2032475,
"slabs_scanned": 1097218,
"swap_ra": 29,
"swap_ra_hit": 5,
"thp_collapse_alloc": 1212,
"thp_collapse_alloc_failed": 0,
"thp_deferred_split_page": 861,
"thp_fault_alloc": 10248,
"thp_fault_fallback": 0,
"thp_fault_fallback_charge": 0,
"thp_file_alloc": 0,
"thp_file_fallback": 0,
"thp_file_fallback_charge": 0,
"thp_file_mapped": 0,
"thp_migration_fail": 0,
"thp_migration_split": 0,
"thp_migration_success": 0,
"thp_split_page": 0,
"thp_split_page_failed": 0,
"thp_split_pmd": 3813,
"thp_split_pud": 0,
"thp_swpout": 0,
"thp_swpout_fallback": 0,
"thp_zero_page_alloc": 2,
"thp_zero_page_alloc_failed": 0,
"unevictable_pgs_cleared": 0,
"unevictable_pgs_culled": 56303,
"unevictable_pgs_mlocked": 36952,
"unevictable_pgs_munlocked": 36952,
"unevictable_pgs_rescued": 36952,
"unevictable_pgs_scanned": 0,
"unevictable_pgs_stranded": 0,
"workingset_activate_anon": 33561,
"workingset_activate_file": 56974,
"workingset_nodereclaim": 130600,
"workingset_nodes": 9668,
"workingset_refault_anon": 72435,
"workingset_refault_file": 448332,
"workingset_restore_anon": 0,
"workingset_restore_file": 40457,
"zone_reclaim_failed": 0
}
}
},
"metricset": {
"name": "memory",
"period": 10000
},
"service": {
"type": "linux"
}
}