contrib/memory.py
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu, 22 Sep 2011 01:51:36 +0200
changeset 15156 143c78b4fc8c
parent 10282 08a0f04b56bd
child 27795 3e0d27d298b7
permissions -rw-r--r--
styles: add new 'bisect' style that prints the bisection status The style is based on the 'default' style, but adds the bisection status of the changesets. Example output for a changeset in range: $ hg log --style bisect -r 15:16 changeset: 15:857b178a7cf3 bisect: bad parent: 13:b0a32c86eb31 parent: 10:429fcd26f52d user: test date: Thu Jan 01 00:00:15 1970 +0000 summary: merge 10,13 changeset: 16:609d82a7ebae bisect: bad (implicit) user: test date: Thu Jan 01 00:00:16 1970 +0000 summary: 16 $ hg log --quiet --style bisect 18:d42e18c7bc9b B 17:228c06deef46 B 16:609d82a7ebae B 15:857b178a7cf3 14:faa450606157 G 13:b0a32c86eb31 G 12:9f259202bbe7 G 11:82ca6f06eccd U 10:429fcd26f52d S 9:3c77083deb4a G 8:dab8161ac8fc 7:50c76098bbf2 I 6:a214d5d3811a I 5:385a529b6670 I 4:5c668c22234f I 3:0950834f0a9c I 2:051e12f87bf1 1:4ca5088da217 0:33b1f9bc8bc5 Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

# 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.
'''

import atexit

def memusage(ui):
    """Report memory usage of the current process."""
    status = None
    result = {'peak': 0, 'rss': 0}
    try:
        # This will only work on systems with a /proc file system
        # (like Linux).
        status = open('/proc/self/status', 'r')
        for line in status:
            parts = line.split()
            key = parts[0][2:-1].lower()
            if key in result:
                result[key] = int(parts[1])
    finally:
        if status is not None:
            status.close()
    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)