contrib/memory.py
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
Mon, 22 Aug 2016 14:44:14 +0200
changeset 29906 a77d48219edd
parent 28510 ade330deb39a
child 30396 ff896733c66a
permissions -rw-r--r--
update: label bookmark name in message We label bookmark name as such in various messages. This will help them to standout (or at least give the user the option to make them stand out). We use a distinct label for the 'active' bookmark, this can help users to catch bookmark operation affecting their working copy.

# memory.py - track memory usage
#
# Copyright 2009 Matt Mackall <mpm@selenic.com> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

'''helper extension to measure memory usage

Reads current and peak memory usage from ``/proc/self/status`` and
prints it to ``stderr`` on exit.
'''

from __future__ import absolute_import
import atexit

def memusage(ui):
    """Report memory usage of the current process."""
    result = {'peak': 0, 'rss': 0}
    with open('/proc/self/status', 'r') as status:
        # This will only work on systems with a /proc file system
        # (like Linux).
        for line in status:
            parts = line.split()
            key = parts[0][2:-1].lower()
            if key in result:
                result[key] = int(parts[1])
    ui.write_err(", ".join(["%s: %.1f MiB" % (key, value / 1024.0)
                            for key, value in result.iteritems()]) + "\n")

def extsetup(ui):
    atexit.register(memusage, ui)