/usr/lib/python3/dist-packages/glances/plugins/glances_cpu.py is in glances 2.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2014 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""CPU plugin."""
from glances.plugins.glances_plugin import GlancesPlugin
import psutil
# SNMP OID
# percentage of user CPU time: .1.3.6.1.4.1.2021.11.9.0
# percentages of system CPU time: .1.3.6.1.4.1.2021.11.10.0
# percentages of idle CPU time: .1.3.6.1.4.1.2021.11.11.0
snmp_oid = {'default': {'user': '1.3.6.1.4.1.2021.11.9.0',
'system': '1.3.6.1.4.1.2021.11.10.0',
'idle': '1.3.6.1.4.1.2021.11.11.0'},
'windows': {'percent': '1.3.6.1.2.1.25.3.3.1.2'},
'esxi': {'percent': '1.3.6.1.2.1.25.3.3.1.2'}}
# Define the history items list
# 'color' define the graph color in #RGB format
# All items in this list will be historised if the --enable-history tag is set
items_history_list = [{'name': 'user', 'color': '#00FF00'},
{'name': 'system', 'color': '#FF0000'}]
class Plugin(GlancesPlugin):
"""
Glances' CPU plugin.
stats is a dict
"""
def __init__(self, args=None):
"""Init the CPU plugin."""
GlancesPlugin.__init__(self, args=args, items_history_list=items_history_list)
# We want to display the stat in the curse interface
self.display_curse = True
# Init stats
self.first_call = True
self.reset()
def reset(self):
"""Reset/init the stats."""
self.stats = {}
def update(self):
"""Update CPU stats using the input method."""
# Reset stats
self.reset()
if self.get_input() == 'local':
# Update stats using the standard system lib
# Grab CPU using the PSUtil cpu_times_percent method
cputimespercent = psutil.cpu_times_percent(interval=0.0, percpu=False)
# Get all possible value for CPU stats
# user
# system
# idle
# nice (UNIX)
# iowait (Linux)
# irq (Linux, FreeBSD)
# softirq (Linux)
# steal (Linux >= 2.6.11)
# The following stats are returned by the API but not displayed in the UI:
# guest (Linux >= 2.6.24)
# guest_nice (Linux >= 3.2.0)
for cpu in ['user', 'system', 'idle', 'nice',
'iowait', 'irq', 'softirq', 'steal',
'guest', 'guest_nice']:
if hasattr(cputimespercent, cpu):
self.stats[cpu] = getattr(cputimespercent, cpu)
elif self.get_input() == 'snmp':
# Update stats using SNMP
if self.get_short_system_name() in ('windows', 'esxi'):
# Windows or VMWare ESXi
# You can find the CPU utilization of windows system by querying the oid
# Give also the number of core (number of element in the table)
try:
cpu_stats = self.set_stats_snmp(snmp_oid=snmp_oid[self.get_short_system_name()],
bulk=True)
except KeyError:
self.reset()
# Iter through CPU and compute the idle CPU stats
self.stats['nb_log_core'] = 0
self.stats['idle'] = 0
for c in cpu_stats:
if c.startswith('percent'):
self.stats['idle'] += float(cpu_stats['percent.3'])
self.stats['nb_log_core'] += 1
if self.stats['nb_log_core'] > 0:
self.stats['idle'] = self.stats['idle'] / self.stats['nb_log_core']
self.stats['idle'] = 100 - self.stats['idle']
else:
# Default behavor
try:
self.stats = self.set_stats_snmp(snmp_oid=snmp_oid[self.get_short_system_name()])
except KeyError:
self.stats = self.set_stats_snmp(snmp_oid=snmp_oid['default'])
if self.stats['idle'] == '':
self.reset()
return self.stats
# Convert SNMP stats to float
for key in list(self.stats.keys()):
self.stats[key] = float(self.stats[key])
# Update the history list
self.update_stats_history()
return self.stats
def msg_curse(self, args=None):
"""Return the list to display in the curse interface."""
# Init the return message
ret = []
# Only process if stats exist...
if self.stats == {}:
return ret
# Build the string message
# If user stat is not here, display only idle / total CPU usage (for exemple on Windows OS)
idle_tag = 'user' not in self.stats
# Header
msg = '{0:8}'.format(_("CPU"))
ret.append(self.curse_add_line(msg, "TITLE"))
# Total CPU usage
msg = '{0:>6.1%}'.format((100 - self.stats['idle']) / 100)
if idle_tag:
ret.append(self.curse_add_line(msg, self.get_alert_log((100 - self.stats['idle']) / 100, header="system")))
else:
ret.append(self.curse_add_line(msg))
# Nice CPU
if 'nice' in self.stats:
msg = ' {0:8}'.format(_("nice:"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6.1%}'.format(self.stats['nice'] / 100)
ret.append(self.curse_add_line(msg, optional=True))
# New line
ret.append(self.curse_new_line())
# User CPU
if 'user' in self.stats:
msg = '{0:8}'.format(_("user:"))
ret.append(self.curse_add_line(msg))
msg = '{0:>6.1%}'.format(self.stats['user'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert_log(self.stats['user'], header="user")))
elif 'idle' in self.stats:
msg = '{0:8}'.format(_("idle:"))
ret.append(self.curse_add_line(msg))
msg = '{0:>6.1%}'.format(self.stats['idle'] / 100)
ret.append(self.curse_add_line(msg))
# IRQ CPU
if 'irq' in self.stats:
msg = ' {0:8}'.format(_("irq:"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6.1%}'.format(self.stats['irq'] / 100)
ret.append(self.curse_add_line(msg, optional=True))
# New line
ret.append(self.curse_new_line())
# System CPU
if 'system' in self.stats and not idle_tag:
msg = '{0:8}'.format(_("system:"))
ret.append(self.curse_add_line(msg))
msg = '{0:>6.1%}'.format(self.stats['system'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert_log(self.stats['system'], header="system")))
else:
msg = '{0:8}'.format(_("core:"))
ret.append(self.curse_add_line(msg))
msg = '{0:>6}'.format(self.stats['nb_log_core'])
ret.append(self.curse_add_line(msg))
# IOWait CPU
if 'iowait' in self.stats:
msg = ' {0:8}'.format(_("iowait:"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6.1%}'.format(self.stats['iowait'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert_log(self.stats['iowait'], header="iowait"), optional=True))
# New line
ret.append(self.curse_new_line())
# Idle CPU
if 'idle' in self.stats and not idle_tag:
msg = '{0:8}'.format(_("idle:"))
ret.append(self.curse_add_line(msg))
msg = '{0:>6.1%}'.format(self.stats['idle'] / 100)
ret.append(self.curse_add_line(msg))
# Steal CPU usage
if 'steal' in self.stats:
msg = ' {0:8}'.format(_("steal:"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6.1%}'.format(self.stats['steal'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert(self.stats['steal'], header="steal"), optional=True))
# Return the message with decoration
return ret
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