Mercurial > hg
annotate contrib/memory.py @ 33352:967ac37f3d45
cleanupnode: do not use generator for node mapping
The 'successors' part of the mappings used of be a tuple. This avoid issue from
code consuming the generator "by mistake". For example, an extension inspecting the
mapping content used to be able to iterate over the successors mapping without
consequence.
Since the mapping are small we do not expect any performance impact we use tuple
again for this.
author | Octobus <contact@octobus.net> |
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date | Sun, 09 Jul 2017 15:11:19 +0200 |
parents | de5c9d0e02ea |
children | 2372284d9457 |
rev | line source |
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contrib: helper extension to track memory usage
Martin Geisler <mg@lazybytes.net>
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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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contrib: make memory.py use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
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14 from __future__ import absolute_import |
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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 result = {'peak': 0, 'rss': 0} |
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with: use context manager for file I/O in memusage
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19 with open('/proc/self/status', 'r') as status: |
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20 # This will only work on systems with a /proc file system |
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21 # (like Linux). |
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22 for line in status: |
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23 parts = line.split() |
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24 key = parts[0][2:-1].lower() |
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25 if key in result: |
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26 result[key] = int(parts[1]) |
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Augie Fackler <augie@google.com>
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27 ui.write_err(", ".join(["%s: %.1f MiB" % (k, v / 1024.0) |
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28 for k, v in result.iteritems()]) + "\n") |
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29 |
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30 def extsetup(ui): |
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atexit: switch to home-grown implementation
Bryan O'Sullivan <bryano@fb.com>
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31 ui.atexit(memusage, ui) |