applications/luci-app-statistics/luasrc/statistics/rrdtool/definitions/memory.lua

   1 -- Copyright  2011 Manuel Munz <freifunk at somakoma dot de>
   2 -- Licensed to the public under the Apache License 2.0.
   3
   4 module("luci.statistics.rrdtool.definitions.memory",package.seeall)
   5
   6 function item()
   7         return luci.i18n.translate("Memory")
   8 end
   9
  10 function rrdargs( graph, plugin, plugin_instance, dtype )
  11         local p = {}
  12
  13         local memory = {
  14                 title = "%H: Memory usage",
  15                 vlabel = "MB",
  16                 number_format = "%5.1lf%s",
  17                 y_min = "0",
  18                 alt_autoscale_max = true,
  19                 data = {
  20                         instances = {
  21                                 memory = {
  22                                         "free",
  23                                         "buffered",
  24                                         "cached",
  25                                         "used"
  26                                 }
  27                         },
  28
  29                         options = {
  30                                 memory_buffered = {
  31                                         color = "0000ff",
  32                                         title = "Buffered"
  33                                 },
  34                                 memory_cached = {
  35                                         color = "ff00ff",
  36                                         title = "Cached"
  37                                 },
  38                                 memory_used = {
  39                                         color = "ff0000",
  40                                         title = "Used"
  41                                 },
  42                                 memory_free = {
  43                                         color = "00ff00",
  44                                         title = "Free"
  45                                 }
  46                         }
  47                 }
  48         }
  49
  50         local percent = {
  51                 title = "%H: Memory usage",
  52                 vlabel = "Percent",
  53                 number_format = "%5.1lf%%",
  54                 y_min = "0",
  55                 alt_autoscale_max = true,
  56                 data = {
  57                         instances = {
  58                                 percent = {
  59                                         "free",
  60                                         "buffered",
  61                                         "cached",
  62                                         "used"
  63                                 }
  64                         },
  65                         options = {
  66                                 percent_buffered = {
  67                                         color = "0000ff",
  68                                         title = "Buffered"
  69                                 },
  70                                 percent_cached = {
  71                                         color = "ff00ff",
  72                                         title = "Cached"
  73                                 },
  74                                 percent_used = {
  75                                         color = "ff0000",
  76                                         title = "Used"
  77                                 },
  78                                 percent_free = {
  79                                         color = "00ff00",
  80                                         title = "Free"
  81                                 }
  82                         }
  83                 }
  84         }
  85
  86         local types = graph.tree:data_types( plugin, plugin_instance )
  87
  88         for _, t in ipairs(types) do
  89                 if t == "percent" then
  90                         p[#p+1] = percent
  91                 end
  92
  93                 if t == "memory" then
  94                         p[#p+1] = memory
  95                 end
  96         end
  97
  98         return p
  99 end