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# -*- 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/>.
"""Process list plugin."""
# Import sys libs
import os
from datetime import timedelta
# Import Glances libs
from glances.core.glances_globals import glances_processes
from glances.plugins.glances_plugin import GlancesPlugin
class Plugin(GlancesPlugin):
"""Glances' processes 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
# Set the message position
# It is NOT the curse position but the Glances column/line
# Enter -1 to right align
self.column_curse = 1
# Enter -1 to diplay bottom
self.line_curse = 4
# Note: 'glances_processes' is already init in the glances_processes.py script
def reset(self):
"""Reset/init the stats."""
self.stats = []
def update(self):
"""Update processes stats using the input method."""
# Reset stats
self.reset()
if self.get_input() == 'local':
# Update stats using the standard system lib
# Note: Update is done in the processcount plugin
# Just return the processes list
self.stats = glances_processes.getlist()
elif self.get_input() == 'snmp':
# Update stats using SNMP
# !!! TODO
pass
return self.stats
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# Only process if stats exist and display plugin enable...
if self.stats == [] or args.disable_process:
return ret
# Compute the sort key
try:
args.process_sorted_by
except AttributeError:
args.process_sorted_by = glances_processes.getsortkey()
if args.process_sorted_by == 'auto':
process_sort_key = glances_processes.getsortkey()
else:
process_sort_key = args.process_sorted_by
sort_style = 'SORT'
# Header
msg = '{0:>6}'.format(_("CPU%"))
ret.append(self.curse_add_line(msg, sort_style if process_sort_key == 'cpu_percent' else 'DEFAULT'))
msg = '{0:>6}'.format(_("MEM%"))
ret.append(self.curse_add_line(msg, sort_style if process_sort_key == 'memory_percent' else 'DEFAULT'))
msg = '{0:>6}'.format(_("VIRT"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6}'.format(_("RES"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6}'.format(_("PID"))
ret.append(self.curse_add_line(msg))
msg = ' {0:10}'.format(_("USER"))
ret.append(self.curse_add_line(msg))
msg = '{0:>4}'.format(_("NI"))
ret.append(self.curse_add_line(msg))
msg = '{0:>2}'.format(_("S"))
ret.append(self.curse_add_line(msg))
msg = '{0:>9}'.format(_("TIME+"))
ret.append(self.curse_add_line(msg, optional=True))
msg = '{0:>6}'.format(_("IOR/s"))
ret.append(self.curse_add_line(msg, sort_style if process_sort_key == 'io_counters' else 'DEFAULT', optional=True))
msg = '{0:>6}'.format(_("IOW/s"))
ret.append(self.curse_add_line(msg, sort_style if process_sort_key == 'io_counters' else 'DEFAULT', optional=True))
msg = ' {0:8}'.format(_("Command"))
ret.append(self.curse_add_line(msg))
# Trying to display proc time
tag_proc_time = True
# Loop over processes (sorted by the sort key previously compute)
for p in self.sortlist(process_sort_key):
ret.append(self.curse_new_line())
# CPU
msg = '{0:>6.1f}'.format(p['cpu_percent'])
ret.append(self.curse_add_line(msg,
self.get_alert(p['cpu_percent'], header="cpu")))
# MEM
msg = '{0:>6.1f}'.format(p['memory_percent'])
ret.append(self.curse_add_line(msg,
self.get_alert(p['memory_percent'], header="mem")))
# VMS
msg = '{0:>6}'.format(self.auto_unit(p['memory_info'][1], low_precision=False))
ret.append(self.curse_add_line(msg, optional=True))
# RSS
msg = '{0:>6}'.format(self.auto_unit(p['memory_info'][0], low_precision=False))
ret.append(self.curse_add_line(msg, optional=True))
# PID
msg = '{0:>6}'.format(p['pid'])
ret.append(self.curse_add_line(msg))
# USER
# docker internal users are displayed as ints only, therefore str()
msg = ' {0:9}'.format(str(p['username'])[:9])
ret.append(self.curse_add_line(msg))
# NICE
nice = p['nice']
if nice is None:
nice = '?'
msg = '{0:>5}'.format(nice)
if nice != 0:
ret.append(self.curse_add_line(msg, decoration='NICE'))
else:
ret.append(self.curse_add_line(msg))
# STATUS
status = p['status']
msg = '{0:>2}'.format(status)
if status == 'R':
ret.append(self.curse_add_line(msg, decoration='STATUS'))
else:
ret.append(self.curse_add_line(msg))
# TIME+
if tag_proc_time:
try:
dtime = timedelta(seconds=sum(p['cpu_times']))
except Exception:
# Catched on some Amazon EC2 server
# See https://github.com/nicolargo/glances/issues/87
tag_proc_time = False
else:
msg = '{0}:{1}.{2}'.format(str(dtime.seconds // 60 % 60),
str(dtime.seconds % 60).zfill(2),
str(dtime.microseconds)[:2].zfill(2))
else:
msg = ' '
msg = '{0:>9}'.format(msg)
ret.append(self.curse_add_line(msg, optional=True))
# IO read/write
if 'io_counters' in p:
# IO read
io_rs = (p['io_counters'][0] - p['io_counters'][2]) / p['time_since_update']
if io_rs == 0:
msg = '{0:>6}'.format("0")
else:
msg = '{0:>6}'.format(self.auto_unit(io_rs, low_precision=False))
ret.append(self.curse_add_line(msg, optional=True))
# IO write
io_ws = (p['io_counters'][1] - p['io_counters'][3]) / p['time_since_update']
if io_ws == 0:
msg = '{0:>6}'.format("0")
else:
msg = '{0:>6}'.format(self.auto_unit(io_ws, low_precision=False))
ret.append(self.curse_add_line(msg, optional=True))
else:
msg = '{0:>6}'.format("?")
ret.append(self.curse_add_line(msg, optional=True))
ret.append(self.curse_add_line(msg, optional=True))
# Command line
# If no command line for the process is available, fallback to
# the bare process name instead
cmdline = p['cmdline']
if cmdline == "":
msg = ' {0}'.format(p['name'])
ret.append(self.curse_add_line(msg, splittable=True))
else:
try:
cmd = cmdline.split()[0]
args = ' '.join(cmdline.split()[1:])
path, basename = os.path.split(cmd)
if os.path.isdir(path):
msg = ' {0}'.format(path) + os.sep
ret.append(self.curse_add_line(msg, splittable=True))
ret.append(self.curse_add_line(basename, decoration='PROCESS', splittable=True))
else:
msg = ' {0}'.format(basename)
ret.append(self.curse_add_line(msg, decoration='PROCESS', splittable=True))
msg = " {0}".format(args)
ret.append(self.curse_add_line(msg, splittable=True))
except UnicodeEncodeError:
ret.append(self.curse_add_line("", splittable=True))
# Return the message with decoration
return ret
def sortlist(self, sortedby=None):
"""Return the stats sorted by sortedby variable."""
if sortedby is None:
# No need to sort...
return self.stats
sortedreverse = True
if sortedby == 'name':
sortedreverse = False
if sortedby == 'io_counters':
# Specific case for io_counters
# Sum of io_r + io_w
try:
# Sort process by IO rate (sum IO read + IO write)
listsorted = sorted(self.stats,
key=lambda process: process[sortedby][0] -
process[sortedby][2] + process[sortedby][1] -
process[sortedby][3],
reverse=sortedreverse)
except Exception:
listsorted = sorted(self.stats,
key
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