Mercurial > hg
annotate contrib/memory.py @ 17941:9a6e4d5d7ea8
diff: move diffline to patch module
diffline is not part of diff computation, so it makes more sense
to place it with other header generation in patch module.
In upcoming patches we will generalize this approach for
all headers added in the patch, including the git index
header.
author | Guillermo Pérez <bisho@fb.com> |
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date | Thu, 15 Nov 2012 12:19:03 -0800 |
parents | 08a0f04b56bd |
children | 3e0d27d298b7 |
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contrib: helper extension to track memory usage
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1 # memory.py - track memory usage |
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2 # |
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3 # Copyright 2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10264 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 '''helper extension to measure memory usage |
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9 |
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10 Reads current and peak memory usage from ``/proc/self/status`` and |
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11 prints it to ``stderr`` on exit. |
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12 ''' |
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13 |
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14 import atexit |
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15 |
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16 def memusage(ui): |
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17 """Report memory usage of the current process.""" |
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18 status = None |
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19 result = {'peak': 0, 'rss': 0} |
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20 try: |
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21 # This will only work on systems with a /proc file system |
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22 # (like Linux). |
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23 status = open('/proc/self/status', 'r') |
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24 for line in status: |
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25 parts = line.split() |
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26 key = parts[0][2:-1].lower() |
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27 if key in result: |
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28 result[key] = int(parts[1]) |
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29 finally: |
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30 if status is not None: |
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31 status.close() |
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32 ui.write_err(", ".join(["%s: %.1f MiB" % (key, value / 1024.0) |
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33 for key, value in result.iteritems()]) + "\n") |
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34 |
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35 def extsetup(ui): |
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36 atexit.register(memusage, ui) |