contrib/memory.py
author Yuya Nishihara <yuya@tcha.org>
Sat, 03 Nov 2018 17:42:05 +0900
changeset 40522 51091816a355
parent 31958 de5c9d0e02ea
child 43076 2372284d9457
permissions -rw-r--r--
ui: simply concatenate messages before applying color labels This should be cheaper in space than applying labels for each message.
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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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from __future__ import absolute_import
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def memusage(ui):
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    """Report memory usage of the current process."""
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    result = {'peak': 0, 'rss': 0}
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    with open('/proc/self/status', 'r') as status:
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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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        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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    ui.write_err(", ".join(["%s: %.1f MiB" % (k, v / 1024.0)
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                            for k, v in result.iteritems()]) + "\n")
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def extsetup(ui):
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    ui.atexit(memusage, ui)