contrib/memory.py
author Angel Ezquerra <angel.ezquerra@gmail.com>
Wed, 21 Aug 2013 22:34:04 +0200
changeset 19637 cc338115d3b2
parent 10282 08a0f04b56bd
child 27795 3e0d27d298b7
permissions -rw-r--r--
subrepo: make submerge() return the merged substate This will be useful when reusing submerge() to improve the handling of subrepos on mq. # HG changeset patch # User Angel Ezquerra <angel.ezquerra@gmail.com> # Date 1377117244 -7200 # Wed Aug 21 22:34:04 2013 +0200 # Node ID 2defb5453f223c3027eb2f7788fbddd52bbb3352 # Parent a5c90acff5e61aae714ba6c9457d766c54b4f124 subrepo: make submerge() return the merged substate This will be useful when reusing submerge() to improve the handling of subrepos on mq.

# 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)