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37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
# 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)
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