src/collecty/plugins/interrupts.py

   1 #!/usr/bin/python3
   2 ###############################################################################
   3 #                                                                             #
   4 # collecty - A system statistics collection daemon for IPFire                 #
   5 # Copyright (C) 2015 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 import os
  23 import re
  24
  25 from . import base
  26
  27 from ..colours import *
  28
  29 class GraphTemplateInterrupts(base.GraphTemplate):
  30         name = "interrupts"
  31
  32         @property
  33         def rrd_graph(self):
  34                 _ = self.locale.translate
  35
  36                 return [
  37                         "AREA:intr%s:%-15s" % (
  38                                 lighten(PRIMARY, AREA_OPACITY), _("Interrupts"),
  39                         ),
  40                         "GPRINT:intr_max:%12s\:" % _("Maximum") + " %6.2lf" ,
  41                         "GPRINT:intr_min:%12s\:" % _("Minimum") + " %6.2lf" ,
  42                         "GPRINT:intr_avg:%12s\:" % _("Average") + " %6.2lf\\n",
  43                         "LINE1:intr%s" % PRIMARY,
  44                 ]
  45
  46         lower_limit = 0
  47
  48         @property
  49         def graph_title(self):
  50                 _ = self.locale.translate
  51
  52                 if self.object.irq is None:
  53                         return _("Interrupts")
  54
  55                 return _("Interrupt %s") % self.object.irq
  56
  57         @property
  58         def graph_vertical_label(self):
  59                 _ = self.locale.translate
  60
  61                 return _("Interrupts/s")
  62
  63
  64 class InterruptObject(base.Object):
  65         rrd_schema = [
  66                 "DS:intr:DERIVE:0:U",
  67         ]
  68
  69         def init(self, irq=None):
  70                 self.irq = irq
  71
  72         @property
  73         def id(self):
  74                 if self.irq is None:
  75                         return "default"
  76
  77                 return "%s" % self.irq
  78
  79         def collect(self):
  80                 stat = self.read_proc_stat()
  81
  82                 # Get a list of all interrupt events
  83                 interrupts = stat.get("intr").split()
  84
  85                 # The first value is the sum of all interrupts
  86                 total = interrupts.pop(0)
  87
  88                 if self.irq is None:
  89                         return total
  90
  91                 # Otherwise return the value for a specific IRQ
  92                 return interrupts[self.irq]
  93
  94
  95 class InterruptsPlugin(base.Plugin):
  96         name = "interrupts"
  97         description = "Interrupts Plugin"
  98
  99         templates = [GraphTemplateInterrupts]
 100
 101         @property
 102         def objects(self):
 103                 yield InterruptObject(self)
 104
 105                 for irq in os.listdir("/sys/kernel/irq"):
 106                         try:
 107                                 irq = int(irq)
 108                         except (ValueError, TypeError):
 109                                 continue
 110
 111                         yield InterruptObject(self, irq)