linux-kernel - Re: [ckrm-tech] [PATCH 0/2] resource control file system

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Message-ID: <20070309164118.GO6504@in.ibm.com>
Date:	Fri, 9 Mar 2007 22:11:18 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	"Paul Menage" <menage@...gle.com>
Cc:	ckrm-tech@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
	sam@...ain.net, dev@...ru, xemul@...ru, pj@....com,
	ebiederm@...ssion.com, winget@...gle.com,
	containers@...ts.osdl.org, "Serge E. Hallyn" <serue@...ibm.com>,
	akpm@...ux-foundation.org
Subject: Re: [ckrm-tech] [PATCH 0/2] resource control file system - aka containers on top of nsproxy!

On Fri, Mar 09, 2007 at 10:04:30PM +0530, Srivatsa Vaddagiri wrote:
> 2. Regarding space savings, if 100 tasks are in a container (I dont know
>    what is a typical number) -and- lets say that all tasks are to share
>    the same resource allocation (which seems to be natural), then having
>    a 'struct container_group *' pointer in each task_struct seems to be not 
>    very efficient (simply because we dont need that task-level granularity of
>    managing resource allocation).

Note that this 'struct container_group *' pointer is in addition to the
'struct nsproxy *' pointer already in task_struct. If the set of tasks
over which resorce control is applied is typically the same set of tasks
which share the same 'struct nsproxy *' pointer, then IMHO 'struct
container_group *' in each task_struct is not very optimal.

-- 
Regards,
vatsa
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