contrib/memory.py
author Denis Laxalde <denis.laxalde@logilab.fr>
Wed, 23 Oct 2019 17:18:57 +0200
branchstable
changeset 43319 11c85873e106
parent 43076 2372284d9457
child 46819 d4ba4d51f85f
permissions -rw-r--r--
packaging: avoid running bare "make install" in debian/rules We change the "override_dh_install" target to "override_dh_auto_install" in debian/rules (see dh_auto_install(1) for details). This is because we do not want "make install" to be run automatically as we need the --install-layout=deb of "setup.py install". Otherwise, files end up in $DESTDIR/usr/local. At the moment, this is not a problem since files installed in debian/tmp (the default location) are not packed into binary packages (because there are debian/mercurial and debian/mercurial-common directories). This is cleaner to avoid running make more than needed.

# 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


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" % (k, v / 1024.0) for k, v in result.iteritems()]
        )
        + "\n"
    )


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