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diff --git a/collectors/proc.plugin/integrations/memory_statistics.md b/collectors/proc.plugin/integrations/memory_statistics.md deleted file mode 100644 index 52f1bf530..000000000 --- a/collectors/proc.plugin/integrations/memory_statistics.md +++ /dev/null @@ -1,138 +0,0 @@ -<!--startmeta -custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/integrations/memory_statistics.md" -meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/proc.plugin/metadata.yaml" -sidebar_label: "Memory Statistics" -learn_status: "Published" -learn_rel_path: "Data Collection/Linux Systems/Memory" -most_popular: False -message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" -endmeta--> - -# Memory Statistics - - -<img src="https://netdata.cloud/img/linuxserver.svg" width="150"/> - - -Plugin: proc.plugin -Module: /proc/vmstat - -<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> - -## Overview - -Linux Virtual memory subsystem. - -Information about memory management, indicating how effectively the kernel allocates and frees -memory resources in response to system demands. - -Monitors page faults, which occur when a process requests a portion of its memory that isn't -immediately available. Monitoring these events can help diagnose inefficiencies in memory management and -provide insights into application behavior. - -Tracks swapping activity — a vital aspect of memory management where the kernel moves data from RAM to -swap space, and vice versa, based on memory demand and usage. It also monitors the utilization of zswap, -a compressed cache for swap pages, and provides insights into its usage and performance implications. - -In the context of virtualized environments, it tracks the ballooning mechanism which is used to balance -memory resources between host and guest systems. - -For systems using NUMA architecture, it provides insights into the local and remote memory accesses, which -can impact the performance based on the memory access times. - -The collector also watches for 'Out of Memory' kills, a drastic measure taken by the system when it runs out -of memory resources. - - - - -This collector is only supported on the following platforms: - -- linux - -This collector only supports collecting metrics from a single instance of this integration. - - -### Default Behavior - -#### Auto-Detection - -This integration doesn't support auto-detection. - -#### Limits - -The default configuration for this integration does not impose any limits on data collection. - -#### Performance Impact - -The default configuration for this integration is not expected to impose a significant performance impact on the system. - - -## Metrics - -Metrics grouped by *scope*. - -The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. - - - -### Per Memory Statistics instance - - - -This scope has no labels. - -Metrics: - -| Metric | Dimensions | Unit | -|:------|:----------|:----| -| mem.swapio | in, out | KiB/s | -| system.pgpgio | in, out | KiB/s | -| system.pgfaults | minor, major | faults/s | -| mem.balloon | inflate, deflate, migrate | KiB/s | -| mem.zswapio | in, out | KiB/s | -| mem.ksm_cow | swapin, write | KiB/s | -| mem.thp_faults | alloc, fallback, fallback_charge | events/s | -| mem.thp_file | alloc, fallback, mapped, fallback_charge | events/s | -| mem.thp_zero | alloc, failed | events/s | -| mem.thp_collapse | alloc, failed | events/s | -| mem.thp_split | split, failed, split_pmd, split_deferred | events/s | -| mem.thp_swapout | swapout, fallback | events/s | -| mem.thp_compact | success, fail, stall | events/s | -| mem.oom_kill | kills | kills/s | -| mem.numa | local, foreign, interleave, other, pte_updates, huge_pte_updates, hint_faults, hint_faults_local, pages_migrated | events/s | - - - -## Alerts - - -The following alerts are available: - -| Alert name | On metric | Description | -|:------------|:----------|:------------| -| [ 30min_ram_swapped_out ](https://github.com/netdata/netdata/blob/master/health/health.d/swap.conf) | mem.swapio | percentage of the system RAM swapped in the last 30 minutes | -| [ oom_kill ](https://github.com/netdata/netdata/blob/master/health/health.d/ram.conf) | mem.oom_kill | number of out of memory kills in the last 30 minutes | - - -## Setup - -### Prerequisites - -No action required. - -### Configuration - -#### File - -There is no configuration file. -#### Options - - - -There are no configuration options. - -#### Examples -There are no configuration examples. - - |