|
1
|
|
|
# -*- coding: utf-8 -*- |
|
2
|
|
|
# |
|
3
|
|
|
# This file is part of Glances. |
|
4
|
|
|
# |
|
5
|
|
|
# Copyright (C) 2015 Nicolargo <[email protected]> |
|
6
|
|
|
# |
|
7
|
|
|
# Glances is free software; you can redistribute it and/or modify |
|
8
|
|
|
# it under the terms of the GNU Lesser 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
|
|
|
# Glances 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 Lesser General Public License for more details. |
|
16
|
|
|
# |
|
17
|
|
|
# You should have received a copy of the GNU Lesser General Public License |
|
18
|
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
19
|
|
|
|
|
20
|
|
|
"""Swap memory plugin.""" |
|
21
|
|
|
|
|
22
|
|
|
from glances.compat import iterkeys |
|
23
|
|
|
from glances.plugins.glances_plugin import GlancesPlugin |
|
24
|
|
|
|
|
25
|
|
|
import psutil |
|
26
|
|
|
|
|
27
|
|
|
# SNMP OID |
|
28
|
|
|
# Total Swap Size: .1.3.6.1.4.1.2021.4.3.0 |
|
29
|
|
|
# Available Swap Space: .1.3.6.1.4.1.2021.4.4.0 |
|
30
|
|
|
snmp_oid = {'default': {'total': '1.3.6.1.4.1.2021.4.3.0', |
|
31
|
|
|
'free': '1.3.6.1.4.1.2021.4.4.0'}, |
|
32
|
|
|
'windows': {'mnt_point': '1.3.6.1.2.1.25.2.3.1.3', |
|
33
|
|
|
'alloc_unit': '1.3.6.1.2.1.25.2.3.1.4', |
|
34
|
|
|
'size': '1.3.6.1.2.1.25.2.3.1.5', |
|
35
|
|
|
'used': '1.3.6.1.2.1.25.2.3.1.6'}} |
|
36
|
|
|
|
|
37
|
|
|
# Define the history items list |
|
38
|
|
|
# All items in this list will be historised if the --enable-history tag is set |
|
39
|
|
|
# 'color' define the graph color in #RGB format |
|
40
|
|
|
items_history_list = [{'name': 'percent', 'color': '#00FF00', 'y_unit': '%'}] |
|
41
|
|
|
|
|
42
|
|
|
|
|
43
|
|
|
class Plugin(GlancesPlugin): |
|
44
|
|
|
|
|
45
|
|
|
"""Glances swap memory plugin. |
|
46
|
|
|
|
|
47
|
|
|
stats is a dict |
|
48
|
|
|
""" |
|
49
|
|
|
|
|
50
|
|
|
def __init__(self, args=None): |
|
51
|
|
|
"""Init the plugin.""" |
|
52
|
|
|
super(Plugin, self).__init__(args=args, items_history_list=items_history_list) |
|
53
|
|
|
|
|
54
|
|
|
# We want to display the stat in the curse interface |
|
55
|
|
|
self.display_curse = True |
|
56
|
|
|
|
|
57
|
|
|
# Init the stats |
|
58
|
|
|
self.reset() |
|
59
|
|
|
|
|
60
|
|
|
def reset(self): |
|
61
|
|
|
"""Reset/init the stats.""" |
|
62
|
|
|
self.stats = {} |
|
63
|
|
|
|
|
64
|
|
|
@GlancesPlugin._log_result_decorator |
|
65
|
|
|
def update(self): |
|
66
|
|
|
"""Update swap memory stats using the input method.""" |
|
67
|
|
|
# Reset stats |
|
68
|
|
|
self.reset() |
|
69
|
|
|
|
|
70
|
|
|
if self.input_method == 'local': |
|
71
|
|
|
# Update stats using the standard system lib |
|
72
|
|
|
# Grab SWAP using the PSUtil swap_memory method |
|
73
|
|
|
sm_stats = psutil.swap_memory() |
|
74
|
|
|
|
|
75
|
|
|
# Get all the swap stats (copy/paste of the PsUtil documentation) |
|
76
|
|
|
# total: total swap memory in bytes |
|
77
|
|
|
# used: used swap memory in bytes |
|
78
|
|
|
# free: free swap memory in bytes |
|
79
|
|
|
# percent: the percentage usage |
|
80
|
|
|
# sin: the number of bytes the system has swapped in from disk (cumulative) |
|
81
|
|
|
# sout: the number of bytes the system has swapped out from disk |
|
82
|
|
|
# (cumulative) |
|
83
|
|
|
for swap in ['total', 'used', 'free', 'percent', |
|
84
|
|
|
'sin', 'sout']: |
|
85
|
|
|
if hasattr(sm_stats, swap): |
|
86
|
|
|
self.stats[swap] = getattr(sm_stats, swap) |
|
87
|
|
|
elif self.input_method == 'snmp': |
|
88
|
|
|
# Update stats using SNMP |
|
89
|
|
|
if self.short_system_name == 'windows': |
|
90
|
|
|
# Mem stats for Windows OS are stored in the FS table |
|
91
|
|
|
try: |
|
92
|
|
|
fs_stat = self.get_stats_snmp(snmp_oid=snmp_oid[self.short_system_name], |
|
93
|
|
|
bulk=True) |
|
94
|
|
|
except KeyError: |
|
95
|
|
|
self.reset() |
|
96
|
|
|
else: |
|
97
|
|
|
for fs in fs_stat: |
|
98
|
|
|
# The virtual memory concept is used by the operating |
|
99
|
|
|
# system to extend (virtually) the physical memory and |
|
100
|
|
|
# thus to run more programs by swapping unused memory |
|
101
|
|
|
# zone (page) to a disk file. |
|
102
|
|
|
if fs == 'Virtual Memory': |
|
103
|
|
|
self.stats['total'] = int( |
|
104
|
|
|
fs_stat[fs]['size']) * int(fs_stat[fs]['alloc_unit']) |
|
105
|
|
|
self.stats['used'] = int( |
|
106
|
|
|
fs_stat[fs]['used']) * int(fs_stat[fs]['alloc_unit']) |
|
107
|
|
|
self.stats['percent'] = float( |
|
108
|
|
|
self.stats['used'] * 100 / self.stats['total']) |
|
109
|
|
|
self.stats['free'] = self.stats[ |
|
110
|
|
|
'total'] - self.stats['used'] |
|
111
|
|
|
break |
|
112
|
|
|
else: |
|
113
|
|
|
self.stats = self.get_stats_snmp(snmp_oid=snmp_oid['default']) |
|
114
|
|
|
|
|
115
|
|
|
if self.stats['total'] == '': |
|
116
|
|
|
self.reset() |
|
117
|
|
|
return self.stats |
|
118
|
|
|
|
|
119
|
|
|
for key in iterkeys(self.stats): |
|
120
|
|
|
if self.stats[key] != '': |
|
121
|
|
|
self.stats[key] = float(self.stats[key]) * 1024 |
|
122
|
|
|
|
|
123
|
|
|
# used=total-free |
|
124
|
|
|
self.stats['used'] = self.stats['total'] - self.stats['free'] |
|
125
|
|
|
|
|
126
|
|
|
# percent: the percentage usage calculated as (total - |
|
127
|
|
|
# available) / total * 100. |
|
128
|
|
|
self.stats['percent'] = float( |
|
129
|
|
|
(self.stats['total'] - self.stats['free']) / self.stats['total'] * 100) |
|
130
|
|
|
|
|
131
|
|
|
# Update the history list |
|
132
|
|
|
self.update_stats_history() |
|
133
|
|
|
|
|
134
|
|
|
# Update the view |
|
135
|
|
|
self.update_views() |
|
136
|
|
|
|
|
137
|
|
|
return self.stats |
|
138
|
|
|
|
|
139
|
|
|
def update_views(self): |
|
140
|
|
|
"""Update stats views.""" |
|
141
|
|
|
# Call the father's method |
|
142
|
|
|
super(Plugin, self).update_views() |
|
143
|
|
|
|
|
144
|
|
|
# Add specifics informations |
|
145
|
|
|
# Alert and log |
|
146
|
|
|
self.views['used']['decoration'] = self.get_alert_log(self.stats['used'], maximum=self.stats['total']) |
|
147
|
|
|
|
|
148
|
|
|
def msg_curse(self, args=None): |
|
149
|
|
|
"""Return the dict to display in the curse interface.""" |
|
150
|
|
|
# Init the return message |
|
151
|
|
|
ret = [] |
|
152
|
|
|
|
|
153
|
|
|
# Only process if stats exist and plugin not disabled |
|
154
|
|
|
if not self.stats or args.disable_swap: |
|
155
|
|
|
return ret |
|
156
|
|
|
|
|
157
|
|
|
# Build the string message |
|
158
|
|
|
# Header |
|
159
|
|
|
msg = '{0:7} '.format('SWAP') |
|
160
|
|
|
ret.append(self.curse_add_line(msg, "TITLE")) |
|
161
|
|
|
# Percent memory usage |
|
162
|
|
|
msg = '{0:>6.1%}'.format(self.stats['percent'] / 100) |
|
163
|
|
|
ret.append(self.curse_add_line(msg)) |
|
164
|
|
|
# New line |
|
165
|
|
|
ret.append(self.curse_new_line()) |
|
166
|
|
|
# Total memory usage |
|
167
|
|
|
msg = '{0:8}'.format('total:') |
|
168
|
|
|
ret.append(self.curse_add_line(msg)) |
|
169
|
|
|
msg = '{0:>6}'.format(self.auto_unit(self.stats['total'])) |
|
170
|
|
|
ret.append(self.curse_add_line(msg)) |
|
171
|
|
|
# New line |
|
172
|
|
|
ret.append(self.curse_new_line()) |
|
173
|
|
|
# Used memory usage |
|
174
|
|
|
msg = '{0:8}'.format('used:') |
|
175
|
|
|
ret.append(self.curse_add_line(msg)) |
|
176
|
|
|
msg = '{0:>6}'.format(self.auto_unit(self.stats['used'])) |
|
177
|
|
|
ret.append(self.curse_add_line( |
|
178
|
|
|
msg, self.get_views(key='used', option='decoration'))) |
|
179
|
|
|
# New line |
|
180
|
|
|
ret.append(self.curse_new_line()) |
|
181
|
|
|
# Free memory usage |
|
182
|
|
|
msg = '{0:8}'.format('free:') |
|
183
|
|
|
ret.append(self.curse_add_line(msg)) |
|
184
|
|
|
msg = '{0:>6}'.format(self.auto_unit(self.stats['free'])) |
|
185
|
|
|
ret.append(self.curse_add_line(msg)) |
|
186
|
|
|
|
|
187
|
|
|
return ret |
|
188
|
|
|
|
nicolargo /
glances
