pnp-templates/check_mk-mem.linux.php

   1 <?php
   2 # +------------------------------------------------------------------+
   3 # |             ____ _               _        __  __ _  __           |
   4 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   5 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   6 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   7 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   8 # |                                                                  |
   9 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  10 # +------------------------------------------------------------------+
  11 #
  12 # This file is part of Check_MK.
  13 # The official homepage is at http://mathias-kettner.de/check_mk.
  14 #
  15 # check_mk is free software;  you can redistribute it and/or modify it
  16 # under the  terms of the  GNU General Public License  as published by
  17 # the Free Software Foundation in version 2.  check_mk is  distributed
  18 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  19 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  20 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  21 # tails. You should have  received  a copy of the  GNU  General Public
  22 # License along with GNU Make; see the file  COPYING.  If  not,  write
  23 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  24 # Boston, MA 02110-1301 USA.
  25
  26 $defopt = "--vertical-label 'Bytes' -l0 -b 1024 ".
  27           "--color MGRID\"#cccccc\" --color GRID\"#dddddd\" ";
  28
  29 # Work with names rather then numbers.
  30 global $mem_defines;
  31 $mem_defines = array();
  32 foreach ($NAME as $i => $n) {
  33     $mem_defines[$n] = "DEF:$n=$RRDFILE[$i]:$DS[$i]:MAX ";
  34 }
  35
  36 # avoid redeclaration errors if this file is include multiple times (e.g. by basket)
  37 if (!function_exists('mem_area')) {
  38     function mem_area($varname, $color, $title, $stacked)
  39     {
  40         return mem_curve("AREA", $varname, $color, $title, $stacked);
  41     }
  42
  43     function mem_line($varname, $color, $title, $stacked)
  44     {
  45         return mem_curve("LINE1", $varname, $color, $title, $stacked);
  46     }
  47
  48     function mem_curve($how, $varname, $color, $title, $stacked)
  49     {
  50         global $mem_defines;
  51         $tit = sprintf("%-30s", $title);
  52         if (isset($mem_defines[$varname])) {
  53             $x = $mem_defines[$varname] . "$how:$varname#$color:\"$tit\"";
  54             if ($stacked)
  55                 $x .= ":STACK";
  56             $x .= " ";
  57             $x .= "CDEF:${varname}_gb=$varname,1073741824,/ ";
  58             $x .= "GPRINT:${varname}_gb:LAST:\"%6.1lf GB last\" ";
  59             $x .= "GPRINT:${varname}_gb:AVERAGE:\"%6.1lf GB avg\" ";
  60             $x .= "GPRINT:${varname}_gb:MAX:\"%6.1lf GB max\\n\" ";
  61             return $x;
  62         }
  63         else {
  64             return "";
  65         }
  66     }
  67 }
  68
  69 # 1. Overview
  70 $opt[] = $defopt . "--title \"RAM + Swap overview\"";
  71 $def[] = ""
  72         . mem_area("mem_total",    "f0f0f0", "RAM installed",     FALSE)
  73         . mem_area("swap_total",   "e0e0e0", "Swap installed",     TRUE)
  74         . mem_area("mem_used",     "80ff40", "RAM used",          FALSE)
  75         . mem_area("swap_used",    "408f20", "Swap used",          TRUE)
  76         ;
  77
  78 # 2. Swap
  79 $opt[] = $defopt . "--title \"Swap\"";
  80 $def[] = ""
  81         . mem_area("swap_total",   "e0e0e0", "Swap installed",    FALSE)
  82         . mem_area("swap_used",    "408f20", "Swap used",         FALSE)
  83         . mem_area("swap_cached",  "5bebc9", "Swap cached",        TRUE)
  84         ;
  85
  86 # 3. Caches
  87 $opt[] = $defopt . "--title \"Caches\"";
  88 $def[] = ""
  89         . mem_area("cached",       "91cceb", "File contents",   FALSE)
  90         . mem_area("buffers",      "5bb9eb", "Filesystem structure",        TRUE)
  91         . mem_area("swap_cached",  "5bebc9", "Swap cached",        TRUE)
  92         . mem_area("slab",         "af91eb", "Slab (Various smaller caches)",        TRUE)
  93         ;
  94
  95 # 4. Active & Inactive
  96 $opt[] = $defopt . "--title \"Active and Inactive Memory\"";
  97 if (isset($mem_defines["active_anon"])) {
  98     $def[] = ""
  99             . mem_area("active_anon",      "ff4040", "Active   (anonymous)",   FALSE)
 100             . mem_area("active_file",      "ff8080", "Active   (files)",       TRUE)
 101             . mem_area("inactive_anon",    "377cab", "Inactive (anonymous)",   TRUE)
 102             . mem_area("inactive_file",    "4eb0f2", "Inactive (files)",       TRUE)
 103             ;
 104 }
 105 else {
 106     $def[] = ""
 107             . mem_area("active",      "ff4040", "Active",   FALSE)
 108             . mem_area("inactive",    "4040ff", "Inactive",   FALSE)
 109             ;
 110 }
 111
 112 # 5. Dirty
 113 $opt[] = $defopt . "--title \"Filesystem Writeback\"";
 114 $def[] = ""
 115         . mem_area("dirty",         "f2904e", "Dirty disk blocks",   FALSE)
 116         . mem_area("writeback",     "f2df40", "Currently being written",   TRUE)
 117         . mem_area("nfs_unstable",  "c6f24e", "Modified NFS data",        TRUE)
 118         . mem_area("bounce",        "4ef26c", "Bounce buffers",        TRUE)
 119         . mem_area("writeback_tmp", "4eeaf2", "Dirty FUSE data",        TRUE)
 120         ;
 121
 122 # 6. Committing
 123 if (isset($mem_defines["commit_limit"])) {
 124     $opt[] = $defopt . "--title \"Memory committing\"";
 125     $def[] = ""
 126             . mem_area("total_total",   "f0f0f0", "Total virtual memory",   FALSE)
 127             . mem_area("committed_as",  "40a080", "Committed memory",       FALSE)
 128             . mem_area("commit_limit",  "e0e0e0", "Commit limit",            TRUE)
 129             ;
 130 }
 131
 132 # 7. Shared memory
 133 if (isset($mem_defines["shmem"])) {
 134     $opt[] = $defopt . "--title \"Shared memory\"";
 135     $def[] = ""
 136             . mem_area("shmem",   "bf9111", "Shared memory",            FALSE)
 137             ;
 138 }
 139
 140 # 8. Unswappable memory
 141 $opt[] = $defopt . "--title \"Memory that cannot be swapped out\"";
 142 $def[] = ""
 143         . mem_area("kernel_stack",  "7192ad", "Kernel stack",           FALSE)
 144         . mem_area("page_tables",   "71ad9f", "Page tables",             TRUE)
 145         . mem_area("mlocked",       "a671ad", "Locked mmap() data",      TRUE)
 146         ;
 147
 148 # 9. Huge Pages
 149 if (isset($mem_defines["huge_pages_total"])) {
 150 $opt[] = $defopt . "--title \"Huge Pages\"";
 151     $def[] = ""
 152             . mem_area("huge_pages_total",  "f0f0f0", "Total",  FALSE)
 153             . mem_area("huge_pages_free",   "f0a0f0", "Free",   FALSE)
 154             . mem_area("huge_pages_rsvd",   "40f0f0", "Reserved part of Free",  FALSE)
 155             . mem_line("huge_pages_surp",   "90f0b0", "Surplus",  TRUE)
 156             ;
 157 }
 158
 159 # 10. VMalloc
 160 if (isset($mem_defines["vmalloc_total"])) {
 161     $opt[] = $defopt . "--title \"VMalloc Address Space\"";
 162     $def[] = ""
 163         . mem_area("vmalloc_total",  "f0f0f0", "Total address space",   FALSE)
 164         . mem_area("vmalloc_used",   "aaf76f", "Allocated space",       FALSE)
 165         . mem_area("vmalloc_chunk",  "c6f7e9", "Largest free chunk",     TRUE)
 166         ;
 167 }
 168
 169 ?>