/usr/lib/python3/dist-packages/glances/plugins/glances_percpu.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 | # -*- 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/>.
"""Per-CPU plugin."""
# Import Glances libs
from glances.plugins.glances_plugin import GlancesPlugin
# Check for psutil already done in the glances_core script
import psutil
class Plugin(GlancesPlugin):
"""Glances' per-CPU plugin.
stats is a list
"""
def __init__(self, args=None):
"""Init the plugin."""
GlancesPlugin.__init__(self, args=args)
# We want to display the stat in the curse interface
self.display_curse = True
# Init stats
self.reset()
self.percputime_total_new = []
self.percputime_new = []
def reset(self):
"""Reset/init the stats."""
self.stats = []
def update(self):
"""Update per-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 method
# Per-CPU
percputime = psutil.cpu_times(percpu=True)
percputime_total = []
for i in range(len(percputime)):
percputime_total.append(percputime[i].user +
percputime[i].system +
percputime[i].idle)
# Only available on some OS
for i in range(len(percputime)):
if hasattr(percputime[i], 'nice'):
percputime_total[i] += percputime[i].nice
for i in range(len(percputime)):
if hasattr(percputime[i], 'iowait'):
percputime_total[i] += percputime[i].iowait
for i in range(len(percputime)):
if hasattr(percputime[i], 'irq'):
percputime_total[i] += percputime[i].irq
for i in range(len(percputime)):
if hasattr(percputime[i], 'softirq'):
percputime_total[i] += percputime[i].softirq
for i in range(len(percputime)):
if hasattr(percputime[i], 'steal'):
percputime_total[i] += percputime[i].steal
if not hasattr(self, 'percputime_old'):
self.percputime_old = percputime
self.percputime_total_old = percputime_total
else:
self.percputime_new = percputime
self.percputime_total_new = percputime_total
perpercent = []
try:
for i in range(len(self.percputime_new)):
perpercent.append(100 / (self.percputime_total_new[i] -
self.percputime_total_old[i]))
cpu = {'user': (self.percputime_new[i].user -
self.percputime_old[i].user) * perpercent[i],
'system': (self.percputime_new[i].system -
self.percputime_old[i].system) * perpercent[i],
'idle': (self.percputime_new[i].idle -
self.percputime_old[i].idle) * perpercent[i]}
if hasattr(self.percputime_new[i], 'nice'):
cpu['nice'] = (self.percputime_new[i].nice -
self.percputime_old[i].nice) * perpercent[i]
if hasattr(self.percputime_new[i], 'iowait'):
cpu['iowait'] = (self.percputime_new[i].iowait -
self.percputime_old[i].iowait) * perpercent[i]
if hasattr(self.percputime_new[i], 'irq'):
cpu['irq'] = (self.percputime_new[i].irq -
self.percputime_old[i].irq) * perpercent[i]
if hasattr(self.percputime_new[i], 'softirq'):
cpu['softirq'] = (self.percputime_new[i].softirq -
self.percputime_old[i].softirq) * perpercent[i]
if hasattr(self.percputime_new[i], 'steal'):
cpu['steal'] = (self.percputime_new[i].steal -
self.percputime_old[i].steal) * perpercent[i]
self.stats.append(cpu)
self.percputime_old = self.percputime_new
self.percputime_total_old = self.percputime_total_new
except Exception:
self.reset()
else:
# Update stats using SNMP
pass
return self.stats
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# No per CPU stat ? Exit...
if self.stats == []:
msg = _("PER CPU not available")
ret.append(self.curse_add_line(msg, "TITLE"))
return ret
# Build the string message
# Header
msg = '{0:8}'.format(_("PER CPU"))
ret.append(self.curse_add_line(msg, "TITLE"))
# Total CPU usage
for cpu in self.stats:
msg = ' {0:>6.1%}'.format((100 - cpu['idle']) / 100)
ret.append(self.curse_add_line(msg))
# User CPU
if 'user' in self.stats[0]:
# New line
ret.append(self.curse_new_line())
msg = '{0:8}'.format(_("user:"))
ret.append(self.curse_add_line(msg))
for cpu in self.stats:
msg = ' {0:>6.1%}'.format(cpu['user'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert(cpu['user'], header="user")))
# System CPU
if 'user' in self.stats[0]:
# New line
ret.append(self.curse_new_line())
msg = '{0:8}'.format(_("system:"))
ret.append(self.curse_add_line(msg))
for cpu in self.stats:
msg = ' {0:>6.1%}'.format(cpu['system'] / 100)
ret.append(self.curse_add_line(msg, self.get_alert(cpu['system'], header="system")))
# Idle CPU
if 'user' in self.stats[0]:
# New line
ret.append(self.curse_new_line())
msg = '{0:8}'.format(_("idle:"))
ret.append(self.curse_add_line(msg))
for cpu in self.stats:
msg = ' {0:>6.1%}'.format(cpu['idle'] / 100)
ret.append(self.curse_add_line(msg))
# Return the message with decoration
return ret
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