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sysmem.py
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sysmem.py
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#!/usr/bin/env python
"""Shows system memory usage.
Usage: ps-sysmem [-p] [-b] [-N]
-h --help print help
-p --parsable output in a parsable format
-b --bytes express numbers in bytes
-N --nocolors turn off colors
"""
from __future__ import print_function
from docopt import docopt
import psutil
from psutilcli import bytes2human
from psutilcli import colorstr
from psutilcli import disable_colors
from psutilcli import get_percent_grid
BYTES = False
def pprint_ntuple(nt):
for name in nt._fields:
value = getattr(nt, name)
if name != 'percent':
value = bytes2human(value) if not BYTES else value
print('%-10s:\t%12s' % (name, value))
def pprint_ntuple_parsable(nt, prefix):
for name in nt._fields:
value = getattr(nt, name)
if name != 'percent':
value = bytes2human(value) if not BYTES else value
else:
value = "%s" % value
print('%s.%s: %s' % (prefix, name, value))
def main():
global BYTES, NOCOLORS
args = docopt(__doc__)
BYTES = args['--bytes']
virtual = psutil.virtual_memory()
swap = psutil.swap_memory()
if args['--nocolors']:
disable_colors()
if args['--parsable']:
pprint_ntuple_parsable(virtual, "virtual")
pprint_ntuple_parsable(swap, "swap")
else:
print('%s %s' % (
colorstr("Virtual", bold=1),
get_percent_grid(virtual.percent)))
print(colorstr('-' * 58, bold=1))
pprint_ntuple(virtual)
print()
print('%s %s' % (
colorstr("Swap", bold=1),
get_percent_grid(swap.percent)))
print(colorstr('-' * 58, bold=1))
pprint_ntuple(swap)
if __name__ == '__main__':
main()