src/collecty/plugins/processor.py

   1 #!/usr/bin/python3
   2 ###############################################################################
   3 #                                                                             #
   4 # collecty - A system statistics collection daemon for IPFire                 #
   5 # Copyright (C) 2012 IPFire development team                                  #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 from . import base
  23
  24 from ..colours import *
  25 from ..i18n import _
  26
  27 class GraphTemplateProcessor(base.GraphTemplate):
  28         name = "processor"
  29
  30         @property
  31         def rrd_graph(self):
  32                 _ = self.locale.translate
  33
  34                 return [
  35                         "AREA:user%s:%-15s" % (CPU_USER, _("User")),
  36                         "GPRINT:user_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  37                         "GPRINT:user_min:%12s\:" % _("Minimum") + " %6.2lf",
  38                         "GPRINT:user_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  39
  40                         "STACK:nice%s:%-15s" % (CPU_NICE, _("Nice")),
  41                         "GPRINT:nice_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  42                         "GPRINT:nice_min:%12s\:" % _("Minimum") + " %6.2lf",
  43                         "GPRINT:nice_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  44
  45                         "STACK:sys%s:%-15s" % (CPU_SYS, _("System")),
  46                         "GPRINT:sys_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  47                         "GPRINT:sys_min:%12s\:" % _("Minimum") + " %6.2lf",
  48                         "GPRINT:sys_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  49
  50                         "STACK:wait%s:%-15s" % (CPU_WAIT, _("Wait")),
  51                         "GPRINT:wait_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  52                         "GPRINT:wait_min:%12s\:" % _("Minimum") + " %6.2lf",
  53                         "GPRINT:wait_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  54
  55                         "STACK:irq%s:%-15s" % (CPU_IRQ, _("Interrupt")),
  56                         "GPRINT:irq_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  57                         "GPRINT:irq_min:%12s\:" % _("Minimum") + " %6.2lf",
  58                         "GPRINT:irq_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  59
  60                         "STACK:sirq%s:%-15s" % (CPU_SIRQ, _("Soft Interrupt")),
  61                         "GPRINT:sirq_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  62                         "GPRINT:sirq_min:%12s\:" % _("Minimum") + " %6.2lf",
  63                         "GPRINT:sirq_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  64
  65                         "STACK:idle%s:%-15s" % (CPU_IDLE, _("Idle")),
  66                         "GPRINT:idle_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  67                         "GPRINT:idle_min:%12s\:" % _("Minimum") + " %6.2lf",
  68                         "GPRINT:idle_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  69                 ]
  70
  71         lower_limit = 0
  72
  73         @property
  74         def graph_title(self):
  75                 _ = self.locale.translate
  76                 return _("Processor Usage")
  77
  78         @property
  79         def graph_vertical_label(self):
  80                 _ = self.locale.translate
  81                 return _("Jiffies")
  82
  83
  84 class ProcessorObject(base.Object):
  85         rrd_schema = [
  86                 "DS:user:DERIVE:0:U",
  87                 "DS:nice:DERIVE:0:U",
  88                 "DS:sys:DERIVE:0:U",
  89                 "DS:idle:DERIVE:0:U",
  90                 "DS:wait:DERIVE:0:U",
  91                 "DS:irq:DERIVE:0:U",
  92                 "DS:sirq:DERIVE:0:U",
  93         ]
  94
  95         @property
  96         def id(self):
  97                 return "default"
  98
  99         def collect(self):
 100                 """
 101                         Reads the CPU usage.
 102                 """
 103                 f = None
 104
 105                 try:
 106                         f = open("/proc/stat")
 107
 108                         for line in f.readlines():
 109                                 if not line.startswith("cpu"):
 110                                         continue
 111
 112                                 columns = line.split()
 113                                 if len(columns) < 8:
 114                                         continue
 115
 116                                 return (
 117                                         columns[1], # user
 118                                         columns[2], # nice
 119                                         columns[3], # sys
 120                                         columns[4], # idle
 121                                         columns[5], # wait
 122                                         columns[6], # irq
 123                                         columns[7], # sirq
 124                                 )
 125                 finally:
 126                         if f:
 127                                 f.close()
 128
 129
 130 class ProcessorPlugin(base.Plugin):
 131         name = "processor"
 132         description = "Processor Usage Plugin"
 133
 134         templates = [GraphTemplateProcessor]
 135
 136         @property
 137         def objects(self):
 138                 yield ProcessorObject(self)