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From: Pavel Machek <pavel@ucw.cz>
To: Jan Engelhardt <jengelh@computergmbh.de>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>,
	John Stoffel <john@stoffel.org>, Andi Kleen <andi@firstfloor.org>,
	akpm@osdl.org, torvalds@osdl.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org
Subject: Re: [PATCH] Document huge memory/cache overhead of memory controller in Kconfig
Date: Wed, 20 Feb 2008 18:19:12 +0000	[thread overview]
Message-ID: <20080220181911.GA4760@ucw.cz> (raw)
In-Reply-To: <Pine.LNX.4.64.0802201647060.26109@fbirervta.pbzchgretzou.qr>

Hi!

> >> I know this is a pedantic comment, but why the heck is it called such
> >> a generic term as "Memory Controller" which doesn't give any
> >> indication of what it does.
> >> 
> >> Shouldn't it be something like "Memory Quota Controller", or "Memory
> >> Limits Controller"?
> >
> >It's called the memory controller since it controls the amount of
> >memory that a user can allocate (via limits). The generic term for
> >any resource manager plugged into cgroups is a controller.
> 
> 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.
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  parent reply	other threads:[~2008-02-20 18:19 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 12:23 [PATCH] Document huge memory/cache overhead of memory controller in Kconfig Andi Kleen
2008-02-20 12:52 ` Balbir Singh
2008-02-20 15:00   ` John Stoffel
2008-02-20 15:20     ` Balbir Singh
2008-02-20 15:49       ` Jan Engelhardt
2008-02-20 16:10         ` John Stoffel
2008-02-20 16:15           ` Balbir Singh
2008-02-20 17:00             ` Andi Kleen
2008-02-21  6:49             ` KAMEZAWA Hiroyuki
2008-02-21  6:52               ` Balbir Singh
2008-02-20 18:19         ` Pavel Machek [this message]
2008-02-20 18:28           ` Jan Engelhardt
2008-02-20 18:51             ` Pavel Machek
2008-02-21 14:46               ` KOSAKI Motohiro
2008-02-21 14:52                 ` Balbir Singh
2008-02-21 23:55                 ` Pavel Machek
2008-02-22  3:09                   ` KOSAKI Motohiro
2008-02-20 16:15       ` John Stoffel
2008-02-20 16:54       ` Ray Lee
2008-02-20 16:57     ` Andi Kleen
2008-02-21  4:35   ` Nick Piggin
2008-02-21  5:06     ` Balbir Singh
     [not found]       ` <200802211622.51751.nickpiggin@yahoo.com.au>
2008-02-21  5:46         ` Balbir Singh
2008-02-21 10:44       ` Andi Kleen
2008-02-22  4:41         ` Balbir Singh
2008-02-22  9:51           ` Andi Kleen
2008-02-22 12:14             ` Balbir Singh
2008-02-22 13:00               ` Andi Kleen
2008-02-22 15:47                 ` Balbir Singh
2008-02-21 10:37     ` Andi Kleen
2008-02-21 11:03       ` Balbir Singh
2008-02-22  6:59         ` KAMEZAWA Hiroyuki
2008-02-22  7:06           ` Balbir Singh

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