From owner-freebsd-hackers@FreeBSD.ORG  Sun Mar  6 17:35:04 2011
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id D76391065672
	for <freebsd-hackers@freebsd.org>; Sun,  6 Mar 2011 17:35:04 +0000 (UTC)
	(envelope-from rysto32@gmail.com)
Received: from mail-ew0-f54.google.com (mail-ew0-f54.google.com
	[209.85.215.54])
	by mx1.freebsd.org (Postfix) with ESMTP id 5FC9A8FC0A
	for <freebsd-hackers@freebsd.org>; Sun,  6 Mar 2011 17:35:04 +0000 (UTC)
Received: by ewy28 with SMTP id 28so1243869ewy.13
	for <freebsd-hackers@freebsd.org>; Sun, 06 Mar 2011 09:35:03 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:cc:content-type
	:content-transfer-encoding;
	bh=nps4GO6uTwFVcp+O1fApQAamiS7OAxYk76GjQ6SCdrw=;
	b=NiFN/Fsp4QhdCEMYVcQT0fKPFbVH8zBVB2URhfVWp7NSNgVFmtvTjwQo/oNjPOKt5t
	Bs1VLqoDpBNLnIBTQrxdLXEreAXszF1J+WEAqOaKfY1kJZyTG/EUF/eIqyou3Cd9GN8o
	T21bhBh1qJYRooty5bguECQelR24iZNzb/Kvw=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type:content-transfer-encoding;
	b=bBq2c7Ouz77FELqqHgdRF4+5QXVAB8l9wNVScWrL1rgf3ZLkSXRR7q+sy/cD/QLkIm
	ISDqVhyUtoGaka7KY7PsKxcvU2jFeoGvROuA6NwGKe0421a3yWAugmmsf2WIj8ja/V7c
	1BCn9XOd1vXM7DLHeOaGxrJZ/AqIFxUI/UBTk=
MIME-Version: 1.0
Received: by 10.213.109.72 with SMTP id i8mr1108177ebp.42.1299432903252; Sun,
	06 Mar 2011 09:35:03 -0800 (PST)
Received: by 10.213.23.13 with HTTP; Sun, 6 Mar 2011 09:35:03 -0800 (PST)
In-Reply-To: <AANLkTiksK3RYkbVCj6wphOLu5oxvUNKWRrBOJb8VaGXp@mail.gmail.com>
References: <40A52D4A-9397-4406-A7EC-E7CBBEFADD55@freebsd.org>
	<4D726887.5080800@rojer.pp.ru>
	<570723AB-7011-4185-89E1-E02F018DC0C3@ttel.com>
	<AANLkTikd22VT3CVtvkGdw6zos+iq4Ve8y1W_WLr0qctS@mail.gmail.com>
	<AANLkTi=K9QuK+byxF1t7HzG9wKxXek804tNOgzM3Dp_b@mail.gmail.com>
	<AANLkTiksK3RYkbVCj6wphOLu5oxvUNKWRrBOJb8VaGXp@mail.gmail.com>
Date: Sun, 6 Mar 2011 12:35:03 -0500
Message-ID: <AANLkTimV2d0aYjeQp-OBeOwdhNjTkVfg7d9ATtc=t7SP@mail.gmail.com>
From: Ryan Stone <rysto32@gmail.com>
To: Vlad Galu <dudu@dudu.ro>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Cc: Deomid Ryabkov <myself@rojer.pp.ru>, Eric Anderson <anderson@ttel.com>,
	freebsd-hackers@freebsd.org
Subject: Re: Mem leak : malloc/free + pthreads = leakage?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/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: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 06 Mar 2011 17:35:04 -0000

On Sun, Mar 6, 2011 at 10:34 AM, Ryan Stone <rysto32@gmail.com> wrote:
> I would try playing with MALLOC_OPTIONS. =A0I seriously doubt that there
> is an actual leak in jemalloc, but from my own experiences with it I
> suspect that there are certain multithreaded malloc/free sequences
> that interact badly with with the per-thread caching that jemalloc
> performs. =A0The first thing I would try is setting MALLOC_OPTIONS=3D7h t=
o
> disable the caching.
>

Wait, sorry, apparently this is a new option in HEAD.  Under 8.1
MALLOC_OPTIONS=3Dg will disable the thread-specific caching.  See the
malloc(3) man page for the definitive list of available options.