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                         "CDEF:total=user,nice,+,sys,+,wait,+,irq,+,sirq,+,idle,+",
  36
  37                         "CDEF:user_p=100,user,*,total,/",
  38                         "AREA:user_p%s:%-15s" % (CPU_USER, _("User")),
  39                         "GPRINT:user_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  40                         "GPRINT:user_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  41                         "GPRINT:user_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  42
  43                         "CDEF:nice_p=100,nice,*,total,/",
  44                         "STACK:nice_p%s:%-15s" % (CPU_NICE, _("Nice")),
  45                         "GPRINT:nice_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  46                         "GPRINT:nice_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  47                         "GPRINT:nice_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  48
  49                         "CDEF:sys_p=100,sys,*,total,/",
  50                         "STACK:sys_p%s:%-15s" % (CPU_SYS, _("System")),
  51                         "GPRINT:sys_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  52                         "GPRINT:sys_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  53                         "GPRINT:sys_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  54
  55                         "CDEF:wait_p=100,wait,*,total,/",
  56                         "STACK:wait_p%s:%-15s" % (CPU_WAIT, _("Wait")),
  57                         "GPRINT:wait_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  58                         "GPRINT:wait_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  59                         "GPRINT:wait_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  60
  61                         "CDEF:irq_p=100,irq,*,total,/",
  62                         "STACK:irq_p%s:%-15s" % (CPU_IRQ, _("Interrupt")),
  63                         "GPRINT:irq_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  64                         "GPRINT:irq_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  65                         "GPRINT:irq_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  66
  67                         "CDEF:sirq_p=100,sirq,*,total,/",
  68                         "STACK:sirq_p%s:%-15s" % (CPU_SIRQ, _("Soft Interrupt")),
  69                         "GPRINT:sirq_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  70                         "GPRINT:sirq_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  71                         "GPRINT:sirq_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  72
  73                         "CDEF:idle_p=100,idle,*,total,/",
  74                         "STACK:idle_p%s:%-15s" % (CPU_IDLE, _("Idle")),
  75                         "GPRINT:idle_p_max:%12s\:" % _("Maximum") + " %6.2lf%%",
  76                         "GPRINT:idle_p_min:%12s\:" % _("Minimum") + " %6.2lf%%",
  77                         "GPRINT:idle_p_avg:%12s\:" % _("Average") + " %6.2lf%%\\n",
  78                 ]
  79
  80         upper_limit = 100
  81         lower_limit = 0
  82
  83         @property
  84         def graph_title(self):
  85                 _ = self.locale.translate
  86                 return _("Processor Usage")
  87
  88         @property
  89         def graph_vertical_label(self):
  90                 _ = self.locale.translate
  91                 return _("Percent")
  92
  93
  94 class ProcessorObject(base.Object):
  95         rrd_schema = [
  96                 "DS:user:DERIVE:0:U",
  97                 "DS:nice:DERIVE:0:U",
  98                 "DS:sys:DERIVE:0:U",
  99                 "DS:idle:DERIVE:0:U",
 100                 "DS:wait:DERIVE:0:U",
 101                 "DS:irq:DERIVE:0:U",
 102                 "DS:sirq:DERIVE:0:U",
 103         ]
 104
 105         @property
 106         def id(self):
 107                 return "default"
 108
 109         def collect(self):
 110                 """
 111                         Reads the CPU usage.
 112                 """
 113                 f = None
 114
 115                 try:
 116                         f = open("/proc/stat")
 117
 118                         for line in f.readlines():
 119                                 if not line.startswith("cpu"):
 120                                         continue
 121
 122                                 columns = line.split()
 123                                 if len(columns) < 8:
 124                                         continue
 125
 126                                 return (
 127                                         columns[1], # user
 128                                         columns[2], # nice
 129                                         columns[3], # sys
 130                                         columns[4], # idle
 131                                         columns[5], # wait
 132                                         columns[6], # irq
 133                                         columns[7], # sirq
 134                                 )
 135                 finally:
 136                         if f:
 137                                 f.close()
 138
 139
 140 class ProcessorPlugin(base.Plugin):
 141         name = "processor"
 142         description = "Processor Usage Plugin"
 143
 144         templates = [GraphTemplateProcessor]
 145
 146         @property
 147         def objects(self):
 148                 yield ProcessorObject(self)