| #!/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 |
| |
| |
| 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() |
