author | Martin von Zweigbergk <martinvonz@google.com> |
Fri, 24 Oct 2014 15:52:20 -0500 | |
branch | stable |
changeset 23080 | c586cb50872b |
parent 10282 | 08a0f04b56bd |
child 27795 | 3e0d27d298b7 |
permissions | -rw-r--r-- |
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# memory.py - track memory usage |
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# |
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# Copyright 2009 Matt Mackall <mpm@selenic.com> and others |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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'''helper extension to measure memory usage |
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Reads current and peak memory usage from ``/proc/self/status`` and |
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prints it to ``stderr`` on exit. |
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''' |
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import atexit |
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def memusage(ui): |
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"""Report memory usage of the current process.""" |
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status = None |
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result = {'peak': 0, 'rss': 0} |
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try: |
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# This will only work on systems with a /proc file system |
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# (like Linux). |
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status = open('/proc/self/status', 'r') |
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for line in status: |
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parts = line.split() |
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key = parts[0][2:-1].lower() |
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if key in result: |
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result[key] = int(parts[1]) |
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finally: |
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if status is not None: |
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status.close() |
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ui.write_err(", ".join(["%s: %.1f MiB" % (key, value / 1024.0) |
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for key, value in result.iteritems()]) + "\n") |
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def extsetup(ui): |
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atexit.register(memusage, ui) |