Message-ID: <45068D81.5000606@openvz.org>
Date: Tue, 12 Sep 2006 14:35:45 +0400
From: Pavel Emelianov <xemul@openvz.org>
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To: vatsa@in.ibm.com, balbir@in.ibm.com, sekharan@us.ibm.com
CC: Rik van Riel <riel@redhat.com>,
       CKRM-Tech <ckrm-tech@lists.sourceforge.net>,
       Dave Hansen <haveblue@us.ibm.com>, Andi Kleen <ak@suse.de>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Christoph Hellwig <hch@infradead.org>, Andrey Savochkin <saw@sw.ru>,
       devel@openvz.org, Matt Helsley <matthltc@us.ibm.com>,
       Hugh Dickins <hugh@veritas.com>, Alexey Dobriyan <adobriyan@mail.ru>,
       Kirill Korotaev <dev@sw.ru>, Oleg Nesterov <oleg@tv-sign.ru>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added	user
 memory)
References: <44FDAB81.5050608@in.ibm.com> <44FEC7E4.7030708@sw.ru> <44FF1EE4.3060005@in.ibm.com> <1157580371.31893.36.camel@linuxchandra> <45011CAC.2040502@openvz.org> <1157730221.26324.52.camel@localhost.localdomain> <4501B5F0.9050802@in.ibm.com> <450508BB.7020609@openvz.org> <4505161E.1040401@in.ibm.com> <45051AC7.2000607@openvz.org> <20060911102152.GC17182@in.ibm.com>
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Srivatsa Vaddagiri wrote:
> On Mon, Sep 11, 2006 at 12:13:59PM +0400, Pavel Emelianov wrote:
>   
>> If I set up 9 groups to have 100Mb limit then I have 100Mb assured (on
>> 1Gb node)
>> for the 10th one exactly. And I do not have to set up any guarantee as
>> it won't affect
>> anything. So what a guarantee parameter is needed for?
>>     
>
> I presume you are talking of hard-limiting each group to 100 MB here. In
> which case, wont the 100MB (reserved for 10th group) be unutilized
> untill 10th group is started (it may never be started for that matter!).
>
> IMO it would be better to go and use that free 100 MB for reclaimable memory
> and give that up when 10th group is started.
>   
Sure. I've talked about the unreclaimable memory.
Sorry, for not specifying it explicitly.
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