contrib/memory.py
author Martin von Zweigbergk <martinvonz@google.com>
Fri, 08 Feb 2019 13:51:29 -0800
changeset 41662 0a5a6675c86c
parent 31958 de5c9d0e02ea
child 43076 2372284d9457
permissions -rw-r--r--
addremove: use uipathfn instead of m.rel() for recorded similatity message When no path arguments are given to addremove, it generally prints absolute paths. However, before this patch, we would always print the "recording removal of foo as rename to bar (78% similar)" message with relative paths. Differential Revision: https://phab.mercurial-scm.org/D5913

# 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)