linux-kernel - Re: [PATCH] Document huge memory/cache overhead of memory controller in Kconfig

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Message-ID: <20080221235527.GD25977@elf.ucw.cz>
Date:	Fri, 22 Feb 2008 00:55:27 +0100
From:	Pavel Machek <pavel@....cz>
To:	KOSAKI Motohiro <m-kosaki@...es.dti.ne.jp>
Cc:	Jan Engelhardt <jengelh@...putergmbh.de>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	John Stoffel <john@...ffel.org>,
	Andi Kleen <andi@...stfloor.org>, akpm@...l.org,
	torvalds@...l.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] Document huge memory/cache overhead of memory
	controller in Kconfig

Hi!

> >  > >> For ordinary desktop people, memory controller is what developers
> >  > >> know as MMU or sometimes even some other mysterious piece of silicon
> >  > >> inside the heavy box.
> >  > >
> >  > >Actually I'd guess 'memory controller' == 'DRAM controller' == part of
> >  > >northbridge that talks to DRAM.
> >  >
> >  > Yeah that must have been it when Windows says it found a new controller
> >  > after changing the mainboard underneath.
> >
> >  Just for fun... this option really has to be renamed:
> 
> I think one reason of many people easy confusion is caused by bad menu
> hierarchy.
> I popose mem-cgroup move to child of cgroup and resource counter
> (= obey denend on).

> +config CGROUP_MEM_CONT
> +	bool "Memory controller for cgroups"

Memory _resource_ controller for cgroups?

> +	depends on CGROUPS && RESOURCE_COUNTERS
> +	help
> +	  Provides a memory controller that manages both page cache and

Same here.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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