Munin contributed plugins

#!/usr/bin/gawk --exec

BEGIN {

  if (ARGC > 1 && ARGV[1] == "config") {

    print "graph_args --base 1024 -l 0"

    print "graph_vlabel Bytes"

    print "graph_title HugePages usage"

    print "graph_category system"

    print "graph_info This graph shows the usage of the kernel Huge Pages."

    print "graph_order Total Rsvd Free Surp Anon"

    print "Total.label used"

    print "Total.draw AREA"

    print "Total.info In-use Huge Page Memory"

    print "Free.label free"

    print "Free.draw STACK"

    print "Free.info Unused Huge Page Memory."

    print "Rsvd.label reserved"

    print "Rsvd.draw STACK"

    print "Rsvd.info Huge Pages that have been reserved but are not used."

    print "Surp.label surplus"

    print "Surp.draw STACK"

    print "Surp.info Huge Pages that are in excess of the reserved amount, usually only greater than zero when the amount of Huge Pages is reduced while they are in use."

    print "Anon.label anonymous"

    print "Anon.draw STACK"

    print "Anon.info Huge Pages that are in use by the transparent Huge Page allocator khugepaged."

    CONF=1

  }

  ARGV[1] = "/proc/meminfo"

  ARGC = 2

  FS = "[: ]+"

  OFS = ""

  IGNORECASE = 1

}

CONF == 1 {

  if (/Hugepagesize/) {

    print "Total.cdef Total,Free,-,1024,",$2,",*,*"

    print "Free.cdef Free,1024,",$2,",*,*,Rsvd,-"

    print "Rsvd.cdef Rsvd,1024,",$2,",*,*"

    print "Surp.cdef Surp,1024,",$2,",*,*"

    print "Anon.cdef Anon,1024,*"

  }

}

(CONF != 1) {

  if (match($0,"(anon)?hugepages(_([^:]+))?[^i]",mats))

    print mats[1],mats[3],".value ",$2

}