python/psutil/examples/free.py

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1 #!/usr/bin/env python
2
3 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
4 # Use of this source code is governed by a BSD-style license that can be
5 # found in the LICENSE file.
6
7 """
8 A clone of 'free' cmdline utility.
9 """
10
11 import psutil
12 from psutil._compat import print_
13
14 def main():
15 virt = psutil.virtual_memory()
16 swap = psutil.swap_memory()
17 templ = "%-7s %10s %10s %10s %10s %10s %10s"
18 print_(templ % ('', 'total', 'used', 'free', 'shared', 'buffers', 'cache'))
19 print_(templ % ('Mem:', int(virt.total / 1024),
20 int(virt.used / 1024),
21 int(virt.free / 1024),
22 int(getattr(virt, 'shared', 0) / 1024),
23 int(getattr(virt, 'buffers', 0) / 1024),
24 int(getattr(virt, 'cached', 0) / 1024)))
25 print_(templ % ('Swap:', int(swap.total / 1024),
26 int(swap.used / 1024),
27 int(swap.free / 1024),
28 '', '', ''))
29
30 if __name__ == '__main__':
31 main()

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