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.

⭐ Telegraf v0.1.5 🏷️ system 💻 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 for more details.

Configuration

toml

# Read metrics about memory usage
[[inputs.mem]]
  # no configuration

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)

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,wired=0i,write_back=0i,write_back_tmp=0i 1574712869000000000