telegraf/plugins/inputs/system/PROCESSES_README.md

1.6 KiB

Processes Input Plugin

This plugin gathers info about the total number of processes and groups them by status (zombie, sleeping, running, etc.)

On linux this plugin requires access to procfs (/proc), on other OSes it requires access to execute ps.

Configuration:

# Get the number of processes and group them by status
[[inputs.processes]]
  # no configuration

Measurements & Fields:

  • processes
    • blocked (aka disk sleep or uninterruptible sleep)
    • running
    • sleeping
    • stopped
    • total
    • zombie
    • dead
    • wait (freebsd only)
    • idle (bsd only)
    • paging (linux only)
    • total_threads (linux only)

Process State Mappings

Different OSes use slightly different State codes for their processes, these state codes are documented in man ps, and I will give a mapping of what major OS state codes correspond to in telegraf metrics:

Linux  FreeBSD  Darwin  meaning
  R       R       R     running
  S       S       S     sleeping
  Z       Z       Z     zombie
  X      none    none   dead
  T       T       T     stopped
 none     I       I     idle (sleeping for longer than about 20 seconds)
  D      D,L      U     blocked (waiting in uninterruptible sleep, or locked)
  W       W      none   paging (linux kernel < 2.6 only), wait (freebsd)

Tags:

None

Example Output:

$ telegraf -config ~/ws/telegraf.conf -input-filter processes -test
* Plugin: processes, Collection 1
> processes blocked=8i,running=1i,sleeping=265i,stopped=0i,total=274i,zombie=0i,dead=0i,paging=0i,total_threads=687i 1457478636980905042