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re: Avoid pre-compiling regular expressions
[oddments/collecty.git] / src / collecty / plugins / interrupts.py
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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
22import re
23
24from . import base
25
03ba5630 26from ..colours import *
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27from ..i18n import _
28
29class GraphTemplateSystemInterrupts(base.GraphTemplate):
30 name = "system-interrupts"
31
32 @property
33 def rrd_graph(self):
34 _ = self.locale.translate
35
36 return [
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37 "AREA:intr%s:%-15s" % (
38 util.lighten(PRIMARY, AREA_OPACITY), _("System Interrupts"),
39 ),
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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",
03ba5630 43 "LINE1:intr%s" % PRIMARY,
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44 ]
45
46 lower_limit = 0
47
48 @property
49 def graph_title(self):
50 _ = self.locale.translate
51 return _("System Interrupts")
52
53 @property
54 def graph_vertical_label(self):
55 _ = self.locale.translate
56 return _("System Interrupts/s")
57
58
59class SystemInterruptsObject(base.Object):
60 rrd_schema = [
61 "DS:intr:DERIVE:0:U",
62 ]
63
64 @property
65 def id(self):
66 return "default"
67
68 def collect(self):
aa0c868a 69 expr = r"^intr (\d+)"
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70
71 with open("/proc/stat") as f:
72 for line in f.readlines():
73 m = re.match(expr, line)
74 if m:
75 return m.group(1)
76
77
78class SystemInterruptsPlugin(base.Plugin):
79 name = "system-interrupts"
80 description = "System Interrupts Plugin"
81
82 templates = [GraphTemplateSystemInterrupts]
83
84 @property
85 def objects(self):
86 yield SystemInterruptsObject(self)