mem

Mem Input Plugin

The mem plugin collects system memory metrics.

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

Configuration:

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

Metrics:

Available fields are dependent on platform.

• mem
  • fields:
    • active (integer)
    • available (integer)
    • buffered (integer)
    • cached (integer)
    • free (integer)
    • inactive (integer)
    • slab (integer)
    • total (integer)
    • used (integer)
    • available_percent (float)
    • used_percent (float)
    • wired (integer)
    • commit_limit (integer)
    • committed_as (integer)
    • dirty (integer)
    • high_free (integer)
    • high_total (integer)
    • huge_page_size (integer)
    • huge_pages_free (integer)
    • huge_pages_total (integer)
    • low_free (integer)
    • low_total (integer)
    • mapped (integer)
    • page_tables (integer)
    • shared (integer)
    • swap_cached (integer)
    • swap_free (integer)
    • swap_total (integer)
    • vmalloc_chunk (integer)
    • vmalloc_total (integer)
    • vmalloc_used (integer)
    • write_back (integer)
    • write_back_tmp (integer)

Example Output:

mem active=11347566592i,available=18705133568i,available_percent=89.4288960571006,buffered=1976709120i,cached=13975572480i,commit_limit=14753067008i,committed_as=2872422400i,dirty=87461888i,free=1352400896i,high_free=0i,high_total=0i,huge_page_size=2097152i,huge_pages_free=0i,huge_pages_total=0i,inactive=6201593856i,low_free=0i,low_total=0i,mapped=310427648i,page_tables=14397440i,shared=200781824i,slab=1937526784i,swap_cached=0i,swap_free=4294963200i,swap_total=4294963200i,total=20916207616i,used=3611525120i,used_percent=17.26663449848977,vmalloc_chunk=0i,vmalloc_total=35184372087808i,vmalloc_used=0i,wired=0i,write_back=0i,write_back_tmp=0i 1536704085000000000