linux-kernel - Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)

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Date:	Mon, 18 Sep 2006 17:08:20 -0700
From:	Chandra Seetharaman <sekharan@...ibm.com>
To:	Pavel Emelianov <xemul@...nvz.org>
Cc:	balbir@...ibm.com, Rik van Riel <riel@...hat.com>,
	Srivatsa <vatsa@...ibm.com>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	Dave Hansen <haveblue@...ibm.com>, Andi Kleen <ak@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	Matt Helsley <matthltc@...ibm.com>,
	Hugh Dickins <hugh@...itas.com>,
	Alexey Dobriyan <adobriyan@...l.ru>,
	Kirill Korotaev <dev@...ru>, Oleg Nesterov <oleg@...sign.ru>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added	user
	memory)

On Mon, 2006-09-18 at 16:37 +0400, Pavel Emelianov wrote:
> Balbir Singh wrote:
> 
> [snip]
> >
> > The program (calculate_limits()) listed on the website does not work for
> > the following case
> >
> > N=2;
> > R=100;
> > g[2] = {30, 30};
> >
> >
> > The output is -10 and -10 for the limits
> >
> > For
> >
> > N=3;
> > R=100;
> > g[3] = {30, 30, 10};
> >
> > I get -70, -70 and -110 as the limits
> >
> > Am I interpreting the parameters correctly? Or the program is broken?
> >
> 
> Program on site is broken. Thanks for noticing:
> 
> $ gcc guar.c -o guar
> $ ./guar 30 30
> guar lim
>   30  70 ( 70/1)
>   30  70 ( 70/1)
> $ ./guar 30 30 10
> guar lim
>   30  45 ( 90/2)
>   30  45 ( 90/2)
>   10  25 ( 50/2)

I am confused. Are you changing the parameters on how the user want the
groups to be controlled.

They want the resource usage to be between 30 and 70, but you change it
to be 30-45. 

> 
> 
> To stop future "errors" remember that this is a simplified program that
> considers guarantees to be <= 100%, sum of guarantees to be <= 100% etc.
> 
> -------------------------------------------------------------------------
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/ckrm-tech
-- 

----------------------------------------------------------------------
    Chandra Seetharaman               | Be careful what you choose....
              - sekharan@...ibm.com   |      .......you may get it.
----------------------------------------------------------------------


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