Mercurial > hg
annotate contrib/memory.py @ 48857:41c552a20716
tests: collapse some more trivial if PYTHON3 blocks
This doesn't account for all of the references to PYTHON3. But it
accounts for the ones that are more trivial and don't entail logical
changes.
Differential Revision: https://phab.mercurial-scm.org/D12235
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sun, 20 Feb 2022 13:16:44 -0700 |
parents | d4ba4d51f85f |
children | 6000f5b25c9b |
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1 # memory.py - track memory usage |
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2 # |
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3 # Copyright 2009 Olivia Mackall <olivia@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 from __future__ import absolute_import |
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15 |
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16 |
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17 def memusage(ui): |
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18 """Report memory usage of the current process.""" |
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19 result = {'peak': 0, 'rss': 0} |
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20 with open('/proc/self/status', 'r') as status: |
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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 for line in status: |
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24 parts = line.split() |
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25 key = parts[0][2:-1].lower() |
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26 if key in result: |
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27 result[key] = int(parts[1]) |
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28 ui.write_err( |
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29 ", ".join( |
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30 ["%s: %.1f MiB" % (k, v / 1024.0) for k, v in result.iteritems()] |
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31 ) |
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32 + "\n" |
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33 ) |
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34 |
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35 |
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36 def extsetup(ui): |
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37 ui.atexit(memusage, ui) |