From owner-freebsd-hackers@freebsd.org  Sun Jul  9 21:04:34 2017
Return-Path: <owner-freebsd-hackers@freebsd.org>
Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id ACC6FD95D87
 for <freebsd-hackers@mailman.ysv.freebsd.org>;
 Sun,  9 Jul 2017 21:04:34 +0000 (UTC) (envelope-from yuri@rawbw.com)
Received: from shell1.rawbw.com (shell1.rawbw.com [198.144.192.42])
 by mx1.freebsd.org (Postfix) with ESMTP id 83CC370954
 for <freebsd-hackers@FreeBSD.org>; Sun,  9 Jul 2017 21:04:34 +0000 (UTC)
 (envelope-from yuri@rawbw.com)
Received: from yv.noip.me (c-24-6-186-56.hsd1.ca.comcast.net [24.6.186.56])
 (authenticated bits=0)
 by shell1.rawbw.com (8.15.1/8.15.1) with ESMTPSA id v69L4RP5024091
 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO)
 for <freebsd-hackers@FreeBSD.org>; Sun, 9 Jul 2017 14:04:28 -0700 (PDT)
 (envelope-from yuri@rawbw.com)
X-Authentication-Warning: shell1.rawbw.com: Host
 c-24-6-186-56.hsd1.ca.comcast.net [24.6.186.56] claimed to be yv.noip.me
To: Freebsd hackers list <freebsd-hackers@FreeBSD.org>
From: Yuri <yuri@rawbw.com>
Subject: How to see the uncommitted memory size for the process?
Message-ID: <e606e75c-00a4-717d-9f99-99300372e864@rawbw.com>
Date: Sun, 9 Jul 2017 14:04:26 -0700
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101
 Thunderbird/45.8.0
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 09 Jul 2017 21:04:34 -0000

When malloc libraries release memory, they sometimes don't unmap it, but 
instead call madvise(MADV_DONTNEED). Such memory normally first stays 
resident, but is later discarded, instead of swapped, when some other 
process needs more memory.

Is there a way to see the amount of committed (vs. uncommitted) memory 
for the process?


Yuri