"memory" plugin

Collects the memory utilization.

Data sources

Values are collected as bytes. You have to multiply by 2¹⁰ to get kBytes or 2²⁰ to get MBytes. Of course, the NIST tells me the units are named "KiBytes" (kibibytes) and "MiBytes" (mebibytes)..

used (gauge, min 0, max 2⁶³-1)

Memory currently used by programms.

free (gauge, min 0, max 2⁶³-1)

Memory currently not in use.

buffers (gauge, min 0, max 2⁶³-1)

Buffer cache. Used by Linux to cache access to block devices.

cached (gauge, min 0, max 2⁶³-1)

Page cache. Used to speed up data access.

Filename

Example graph

Dependencies

• Linux
  • /proc-Filesystem
• Solaris
  • libkstat(3KSTAT)