linux-kernel - Re: [ckrm-tech] [patch00/05]: Containers(V2)- Introduction

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Message-ID: <6599ad830609201030w38b6ae59ia0d4a4ccabb47054@mail.google.com>
Date:	Wed, 20 Sep 2006 10:30:24 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Alan Cox" <alan@...rguk.ukuu.org.uk>
Cc:	"Christoph Lameter" <clameter@....com>, npiggin@...e.de,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	linux-kernel <linux-kernel@...r.kernel.org>, pj@....com,
	"Rohit Seth" <rohitseth@...gle.com>, devel@...nvz.org
Subject: Re: [ckrm-tech] [patch00/05]: Containers(V2)- Introduction

On 9/20/06, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
>
> I'm also not clear how you handle shared pages correctly under the fake
> node system, can you perhaps explain that further how this works for say
> a single apache/php/glibc shared page set across 5000 containers each a
> web site.

If you can associate files with containers, you can have a "shared
libraries" container that the libraries/binaries for apache/php/glibc
are associated with - all pages from those files are then accounted to
the shared container. So you can see that there are 5000 apaches each
using say 10MB privately, and sharing a container with 100MB of file
data. This can also be O(1) in the number of apache containers.

Paul
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