core-admin/qvm-tools/qvm-top
Marek Marczykowski-Górecki 2164a8d7b8
Change license to LGPL v2.1+
See this thread for reasoning and acceptance from contributors:
https://groups.google.com/d/topic/qubes-devel/G7KzrfU0lWY/discussion
"Changing qubes-core-admin license to LGPL v2.1+"
2017-10-12 00:11:50 +02:00

124 строки
3.8 KiB
Python
Исполняемый файл

#!/usr/bin/python2
# -*- encoding: utf8 -*-
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2010 Joanna Rutkowska <joanna@invisiblethingslab.com>
#
# This library 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 2.1 of the License, or (at your option) any later version.
#
# This library 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 library; if not, see <https://www.gnu.org/licenses/>.
#
#
from qubes.qubes import QubesVmCollection
from qubes.qubes import QubesHost
from qubes.qubes import QubesException
from optparse import OptionParser
import sys
def main():
usage = "usage: %prog [options]"
parser = OptionParser (usage)
parser.add_option("--list", dest="list_top",
action="store_true", default=False,
help="n m : One line summary of top n vms with more than m cpu_time %")
(options, args) = parser.parse_args ()
qvm_collection = QubesVmCollection()
qvm_collection.lock_db_for_reading()
qvm_collection.load()
qvm_collection.unlock_db()
fields_to_display = ["name", "cpu", "mem"]
cpu_usages = None
qhost = QubesHost()
(measure_time, cpu_usages) = qhost.measure_cpu_usage(qvm_collection)
vms_list = [vm for vm in qvm_collection.values() if vm.is_running()]
vms_list = sorted(vms_list, key= lambda vm: 1-cpu_usages[vm.get_xid()]['cpu_usage'])
no_vms = len (vms_list)
vms_to_display = vms_list
if options.list_top:
any_shown = False
ndisp = 3
cputh = 0
if len(args) > 0:
ndisp = int(args[0])
if len(args) > 1:
cputh = int(args[1])
for vm in vms_to_display[:ndisp]:
cpu = cpu_usages[vm.get_xid()]['cpu_usage']
if cpu > cputh:
any_shown = True
sys.stdout.write("%d %s, " % (cpu, vm.name))
if any_shown:
sys.stdout.write(" ... | ")
totalMem = 0
dom0mem = 0
for vm in vms_to_display:
if not vm.name == "dom0":
totalMem += vm.get_mem()
else:
dom0mem = vm.get_mem()
totalMem /= 1024.0 * 1024.0
dom0mem /= 1024.0 * 1024.0
sys.stdout.write("%.1f G + %.1f G" % (totalMem, dom0mem))
return
max_width = { 'name': 0, 'cpu': 0, 'mem': 0 }
data_to_display = []
for vm in vms_to_display:
data_row = {}
data_row['name'] = vm.name
max_width['name'] = max(max_width['name'], len(data_row['name']))
data_row['cpu'] = "%.1f" % (cpu_usages[vm.get_xid()]['cpu_usage'])
max_width['cpu'] = max(max_width['cpu'], len(data_row['cpu']))
data_row['mem'] = "%d" % (vm.get_mem() / (1024.0))
max_width['mem'] = max(max_width['mem'], len(data_row['mem']))
data_to_display.append(data_row)
# Display the header
s = ""
for f in fields_to_display:
fmt="{{0:-^{0}}}-+".format(max_width[f] + 1)
s += fmt.format('-')
print s
s = ""
for f in fields_to_display:
fmt="{{0:>{0}}} |".format(max_width[f] + 1)
s += fmt.format(f)
print s
s = ""
for f in fields_to_display:
fmt="{{0:-^{0}}}-+".format(max_width[f] + 1)
s += fmt.format('-')
print s
# ... and the actual data
for row in data_to_display:
s = ""
for f in fields_to_display:
fmt="{{0:>{0}}} |".format(max_width[f] + 1)
s += fmt.format(row[f])
print s
main()