From owner-freebsd-jail@FreeBSD.ORG  Mon May 23 19:05:34 2011
Return-Path: <owner-freebsd-jail@FreeBSD.ORG>
Delivered-To: freebsd-jail@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 2D037106566B
	for <freebsd-jail@freebsd.org>; Mon, 23 May 2011 19:05:34 +0000 (UTC)
	(envelope-from 000.fbsd@quip.cz)
Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4])
	by mx1.freebsd.org (Postfix) with ESMTP id DEB898FC17
	for <freebsd-jail@freebsd.org>; Mon, 23 May 2011 19:05:33 +0000 (UTC)
Received: from elsa.codelab.cz (localhost.codelab.cz [127.0.0.1])
	by elsa.codelab.cz (Postfix) with ESMTP id C887E19E02D;
	Mon, 23 May 2011 20:48:40 +0200 (CEST)
Received: from [192.168.1.2] (ip-86-49-61-235.net.upcbroadband.cz
	[86.49.61.235]) (using TLSv1 with cipher AES256-SHA (256/256 bits))
	(No client certificate requested)
	by elsa.codelab.cz (Postfix) with ESMTPSA id 58EA419E02F;
	Mon, 23 May 2011 20:48:38 +0200 (CEST)
Message-ID: <4DDAAC05.5050101@quip.cz>
Date: Mon, 23 May 2011 20:48:37 +0200
From: Miroslav Lachman <000.fbsd@quip.cz>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US;
	rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14
MIME-Version: 1.0
To: "Lars R. Noldan" <lars@sixfeetup.com>
References: <4DDA8FDE.9030005@sixfeetup.com>
In-Reply-To: <4DDA8FDE.9030005@sixfeetup.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-jail@freebsd.org
Subject: Re: Memory Limits
X-BeenThere: freebsd-jail@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Discussion about FreeBSD jail\(8\)" <freebsd-jail.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-jail>,
	<mailto:freebsd-jail-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-jail>
List-Post: <mailto:freebsd-jail@freebsd.org>
List-Help: <mailto:freebsd-jail-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-jail>,
	<mailto:freebsd-jail-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 23 May 2011 19:05:34 -0000

Lars R. Noldan wrote:
> Hello all,
>
> I'm sorry if this has been asked before. My search fu only showed
> something dating back to FreeBSD 6.2 era, and I know a lot of work has
> gone into jails since then. Is there a way to limit the amount of total
> ram available to a jail? Say for instance I have a jails server with
> 32gb of ram, can I limit jail01 to 512mb? If this isn't currently
> possible is there any work being done towards this goal?
>
> Any suggestions you can provide, including links to the fine manual I
> should have found but didn't are welcome.
>
> Thanks for all the hard work that's gone into jails! In the time I've
> been using them (since 7.1-Release) The improvements are huge!

You are looking for http://wiki.freebsd.org/Hierarchical_Resource_Limits
it is implemented in 9-CURRENT
http://svnweb.freebsd.org/base/head/usr.bin/rctl/

Miroslav Lachman