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Telegraf

  • Telegraf v0.1.5+
Plugin source Download configuration

Memory Input Plugin

This plugin collects metrics about the system memory.

For an explanation of the difference between used and actual_used RAM, see Linux ate my ram.

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 for more details.

Configuration

# 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

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:

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

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