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# -*- coding: utf-8 -*- |
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# |
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# This file is part of Glances. |
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# |
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# Copyright (C) 2015 Nicolargo <[email protected]> |
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# |
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# Glances is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Glances is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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"""Load plugin.""" |
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import os |
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from glances.compat import iteritems |
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from glances.plugins.glances_core import Plugin as CorePlugin |
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from glances.plugins.glances_plugin import GlancesPlugin |
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# SNMP OID |
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# 1 minute Load: .1.3.6.1.4.1.2021.10.1.3.1 |
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# 5 minute Load: .1.3.6.1.4.1.2021.10.1.3.2 |
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# 15 minute Load: .1.3.6.1.4.1.2021.10.1.3.3 |
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snmp_oid = {'min1': '1.3.6.1.4.1.2021.10.1.3.1', |
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'min5': '1.3.6.1.4.1.2021.10.1.3.2', |
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'min15': '1.3.6.1.4.1.2021.10.1.3.3'} |
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# Define the history items list |
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# All items in this list will be historised if the --enable-history tag is set |
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# 'color' define the graph color in #RGB format |
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items_history_list = [{'name': 'min1', 'color': '#0000FF'}, |
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{'name': 'min5', 'color': '#0000AA'}, |
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{'name': 'min15', 'color': '#000044'}] |
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class Plugin(GlancesPlugin): |
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"""Glances load plugin. |
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stats is a dict |
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""" |
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def __init__(self, args=None): |
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"""Init the plugin.""" |
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super(Plugin, self).__init__(args=args, items_history_list=items_history_list) |
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# We want to display the stat in the curse interface |
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self.display_curse = True |
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# Init stats |
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self.reset() |
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# Call CorePlugin in order to display the core number |
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try: |
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self.nb_log_core = CorePlugin(args=self.args).update()["log"] |
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except Exception: |
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self.nb_log_core = 0 |
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def reset(self): |
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"""Reset/init the stats.""" |
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self.stats = {} |
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@GlancesPlugin._log_result_decorator |
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def update(self): |
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"""Update load stats.""" |
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# Reset stats |
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self.reset() |
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if self.input_method == 'local': |
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# Update stats using the standard system lib |
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# Get the load using the os standard lib |
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try: |
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load = os.getloadavg() |
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except (OSError, AttributeError): |
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self.stats = {} |
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else: |
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self.stats = {'min1': load[0], |
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'min5': load[1], |
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'min15': load[2], |
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'cpucore': self.nb_log_core} |
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elif self.input_method == 'snmp': |
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# Update stats using SNMP |
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self.stats = self.get_stats_snmp(snmp_oid=snmp_oid) |
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if self.stats['min1'] == '': |
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self.reset() |
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return self.stats |
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# Python 3 return a dict like: |
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# {'min1': "b'0.08'", 'min5': "b'0.12'", 'min15': "b'0.15'"} |
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for k, v in iteritems(self.stats): |
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self.stats[k] = float(v) |
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self.stats['cpucore'] = self.nb_log_core |
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# Update the history list |
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self.update_stats_history() |
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# Update the view |
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self.update_views() |
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return self.stats |
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def update_views(self): |
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"""Update stats views.""" |
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# Call the father's method |
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super(Plugin, self).update_views() |
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# Add specifics informations |
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try: |
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# Alert and log |
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self.views['min15']['decoration'] = self.get_alert_log(self.stats['min15'], maximum=100 * self.stats['cpucore']) |
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# Alert only |
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self.views['min5']['decoration'] = self.get_alert(self.stats['min5'], maximum=100 * self.stats['cpucore']) |
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except KeyError: |
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# try/except mandatory for Windows compatibility (no load stats) |
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pass |
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def msg_curse(self, args=None): |
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"""Return the dict to display in the curse interface.""" |
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# Init the return message |
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ret = [] |
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# Only process if stats exist and plugin not disabled |
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if not self.stats or args.disable_load: |
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return ret |
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# Build the string message |
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# Header |
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msg = '{0:8}'.format('LOAD') |
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ret.append(self.curse_add_line(msg, "TITLE")) |
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# Core number |
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if 'cpucore' in self.stats and self.stats['cpucore'] > 0: |
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msg = '{0}-core'.format(int(self.stats['cpucore'])) |
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ret.append(self.curse_add_line(msg)) |
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# New line |
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ret.append(self.curse_new_line()) |
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# 1min load |
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msg = '{0:8}'.format('1 min:') |
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ret.append(self.curse_add_line(msg)) |
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msg = '{0:>6.2f}'.format(self.stats['min1']) |
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ret.append(self.curse_add_line(msg)) |
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# New line |
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ret.append(self.curse_new_line()) |
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# 5min load |
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msg = '{0:8}'.format('5 min:') |
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ret.append(self.curse_add_line(msg)) |
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msg = '{0:>6.2f}'.format(self.stats['min5']) |
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ret.append(self.curse_add_line( |
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msg, self.get_views(key='min5', option='decoration'))) |
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# New line |
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ret.append(self.curse_new_line()) |
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# 15min load |
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msg = '{0:8}'.format('15 min:') |
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ret.append(self.curse_add_line(msg)) |
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msg = '{0:>6.2f}'.format(self.stats['min15']) |
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ret.append(self.curse_add_line( |
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msg, self.get_views(key='min15', option='decoration'))) |
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return ret |
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nicolargo /
glances
