gecko/python/psutil/examples/meminfo.py
Gregory Szorc 322a12f348 Bug 930808 - Upgrade to psutil 2.1.3; r=glandium
psutil 2.1.3 is replacing psutil 1.0.1. There are numerous bug fixes and
feature enhancements in psutil worth obtaining.

Source code was obtained from
https://pypi.python.org/packages/source/p/psutil/psutil-2.1.3.tar.gz and
uncompressed into python/psutil without modification except for the
removal of the egg-info directory and the .travis.yml file.

--HG--
extra : source : 697eb6db7d96dc21e817cd27a7e46ed4ab00f9bb
2014-12-23 10:45:15 -08:00

70 lines
1.5 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Print system memory information.
$ python examples/meminfo.py
MEMORY
------
Total : 9.7G
Available : 4.9G
Percent : 49.0
Used : 8.2G
Free : 1.4G
Active : 5.6G
Inactive : 2.1G
Buffers : 341.2M
Cached : 3.2G
SWAP
----
Total : 0B
Used : 0B
Free : 0B
Percent : 0.0
Sin : 0B
Sout : 0B
"""
import psutil
from psutil._compat import print_
def bytes2human(n):
# http://code.activestate.com/recipes/578019
# >>> bytes2human(10000)
# '9.8K'
# >>> bytes2human(100001221)
# '95.4M'
symbols = ('K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
prefix = {}
for i, s in enumerate(symbols):
prefix[s] = 1 << (i + 1) * 10
for s in reversed(symbols):
if n >= prefix[s]:
value = float(n) / prefix[s]
return '%.1f%s' % (value, s)
return "%sB" % n
def pprint_ntuple(nt):
for name in nt._fields:
value = getattr(nt, name)
if name != 'percent':
value = bytes2human(value)
print_('%-10s : %7s' % (name.capitalize(), value))
def main():
print_('MEMORY\n------')
pprint_ntuple(psutil.virtual_memory())
print_('\nSWAP\n----')
pprint_ntuple(psutil.swap_memory())
if __name__ == '__main__':
main()