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# -*- coding: utf-8 -*-
#!/usr/bin/python
"""
Print memory usage for pid.
"""
import sys
from subprocess import Popen, PIPE
def fsize(fsize_b):
"""
Formats the bytes value into a string with KiB, MiB or GiB units
:param fsize_b: the filesize in bytes
:type fsize_b: int
:returns: formatted string in KiB, MiB or GiB units
:rtype: string
**Usage**
>>> fsize(112245)
'109.6 KiB'
"""
fsize_kb = fsize_b / 1024.0
if fsize_kb < 1024:
return "%.1f KiB" % fsize_kb
fsize_mb = fsize_kb / 1024.0
if fsize_mb < 1024:
return "%.1f MiB" % fsize_mb
fsize_gb = fsize_mb / 1024.0
return "%.1f GiB" % fsize_gb
pid = sys.argv[1]
p = Popen(['ps', 'ufp', pid], stdout=PIPE, stdin=PIPE)
p.wait()
(vss, rss) = map(int, p.stdout.read().splitlines()[-1].split()[4:6])
print('VSS: %-8s (%s)' % (fsize(vss), vss))
print('RSS: %-8s (%s)' % (fsize(rss), rss))
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