Mercurial > hg
annotate contrib/memory.py @ 25565:be4dc0007b8d
hgweb: add some in-code documentation for 'web.view'
This documentation was mostly intended for the user helps. However given the
lack of request for such feature, we should keep it un-documented. We stick the
help text in the code as it could still be useful to fellow contributors.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Thu, 07 Feb 2013 00:32:26 +0000 |
parents | 08a0f04b56bd |
children | 3e0d27d298b7 |
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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) |