---
title: ''
description: Telegraf plugin for collecting metrics from Memory
url: https://docs.influxdata.com/telegraf/v1/input-plugins/mem/
estimated_tokens: 1173
product: Telegraf Controller
version: v1
publisher: InfluxData
canonical: https://docs.influxdata.com/telegraf/v1/input-plugins/mem/
date: '2026-06-08T21:54:11+02:00'
lastmod: '2026-06-08T21:54:11+02:00'
---

==========

* Telegraf v0.1.5+

[Plugin source](https://github.com/influxdata/telegraf/tree/v1.39.0/plugins/inputs/mem/)[Download configuration](https://raw.githubusercontent.com/influxdata/telegraf/refs/tags/v1.39.0/plugins/inputs/mem/sample.conf)

# Memory Input Plugin

This plugin collects metrics about the system memory.

> [!Tip]
> For an explanation of the difference between *used* and *actual\_used*RAM, see [Linux ate my ram](http://www.linuxatemyram.com/).

**Introduced in:** Telegraf v0.1.5**Tags:** system**OS support:** all

## Global configuration options

Plugins support additional global and plugin configuration settings for tasks
such as modifying metrics, tags, and fields, creating aliases, and configuring
plugin ordering. See [CONFIGURATION.md](/telegraf/v1/configuration/#plugins) for more details.

## Configuration

```toml
# Read metrics about memory usage
[[inputs.mem]]
  ## Collect extended memory statistics from /proc/meminfo (Linux)
  ## or from performance counters (Windows).
  # collect_extended = false
```

## Metrics

Available fields are dependent on platform.

* mem
  * fields:
    * active (integer, Darwin, FreeBSD, Linux, OpenBSD)
    * available (integer)
    * available\_percent (float)
    * buffered (integer, FreeBSD, Linux)
    * cached (integer, FreeBSD, Linux, OpenBSD)
    * commit\_limit (integer, Linux)
    * committed\_as (integer, Linux)
    * dirty (integer, Linux)
    * free (integer, Darwin, FreeBSD, Linux, OpenBSD)
    * high\_free (integer, Linux)
    * high\_total (integer, Linux)
    * huge\_pages\_free (integer, Linux)
    * huge\_page\_size (integer, Linux)
    * huge\_pages\_total (integer, Linux)
    * inactive (integer, Darwin, FreeBSD, Linux, OpenBSD)
    * laundry (integer, FreeBSD)
    * low\_free (integer, Linux)
    * low\_total (integer, Linux)
    * mapped (integer, Linux)
    * page\_tables (integer, Linux)
    * shared (integer, Linux)
    * slab (integer, Linux)
    * sreclaimable (integer, Linux)
    * sunreclaim (integer, Linux)
    * swap\_cached (integer, Linux)
    * swap\_free (integer, Linux)
    * swap\_total (integer, Linux)
    * total (integer)
    * used (integer)
    * used\_percent (float)
    * vmalloc\_chunk (integer, Linux)
    * vmalloc\_total (integer, Linux)
    * vmalloc\_used (integer, Linux)
    * wired (integer, Darwin, FreeBSD, OpenBSD)
    * write\_back (integer, Linux)
    * write\_back\_tmp (integer, Linux)

### Extended fields (`collect_extended = true`)

These fields are only collected when `collect_extended` is set to `true`.

#### Linux

* mem
  * fields:
    * active\_anon (integer)
    * active\_file (integer)
    * inactive\_anon (integer)
    * inactive\_file (integer)
    * percpu (integer)
    * unevictable (integer)

#### Windows

* mem
  * fields:
    * commit\_limit (integer)
    * commit\_total (integer)
    * page\_file\_avail (integer)
    * page\_file\_total (integer)
    * phys\_avail (integer)
    * phys\_total (integer)
    * virtual\_avail (integer)
    * virtual\_total (integer)

## Example Output

```text
mem active=9299595264i,available=16818249728i,available_percent=80.41654254645131,buffered=2383761408i,cached=13316689920i,commit_limit=14751920128i,committed_as=11781156864i,dirty=122880i,free=1877688320i,high_free=0i,high_total=0i,huge_page_size=2097152i,huge_pages_free=0i,huge_pages_total=0i,inactive=7549939712i,low_free=0i,low_total=0i,mapped=416763904i,page_tables=19787776i,shared=670679040i,slab=2081071104i,sreclaimable=1923395584i,sunreclaim=157675520i,swap_cached=1302528i,swap_free=4286128128i,swap_total=4294963200i,total=20913917952i,used=3335778304i,used_percent=15.95004011996231,vmalloc_chunk=0i,vmalloc_total=35184372087808i,vmalloc_used=0i,write_back=0i,write_back_tmp=0i 1574712869000000000
```

With `collect_extended = true` on Linux:

```text
mem active=9299595264i,active_anon=5765169152i,active_file=3534426112i,available=16818249728i,available_percent=80.41654254645131,buffered=2383761408i,cached=13316689920i,commit_limit=14751920128i,committed_as=11781156864i,dirty=122880i,free=1877688320i,high_free=0i,high_total=0i,huge_page_size=2097152i,huge_pages_free=0i,huge_pages_total=0i,inactive=7549939712i,inactive_anon=1081245696i,inactive_file=6468694016i,low_free=0i,low_total=0i,mapped=416763904i,page_tables=19787776i,percpu=5765120i,shared=670679040i,slab=2081071104i,sreclaimable=1923395584i,sunreclaim=157675520i,swap_cached=1302528i,swap_free=4286128128i,swap_total=4294963200i,total=20913917952i,unevictable=143360i,used=3335778304i,used_percent=15.95004011996231,vmalloc_chunk=0i,vmalloc_total=35184372087808i,vmalloc_used=0i,write_back=0i,write_back_tmp=0i 1574712869000000000
```