From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by nf-out-0910.google.com with SMTP id h3so1371817nfh.6 for ; Wed, 20 Feb 2008 08:54:59 -0800 (PST) Message-ID: <2c0942db0802200854t64e9ac73g41f0031f4cd995d4@mail.gmail.com> Date: Wed, 20 Feb 2008 08:54:59 -0800 From: "Ray Lee" Subject: Re: [PATCH] Document huge memory/cache overhead of memory controller in Kconfig In-Reply-To: <47BC4554.10304@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080220122338.GA4352@basil.nowhere.org> <47BC2275.4060900@linux.vnet.ibm.com> <18364.16552.455371.242369@stoffel.org> <47BC4554.10304@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org Return-Path: To: balbir@linux.vnet.ibm.com Cc: John Stoffel , Andi Kleen , akpm@osdl.org, torvalds@osdl.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Wed, Feb 20, 2008 at 7:20 AM, Balbir Singh wrote: > John Stoffel wrote: > > 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. If you look through some of the references > in the document, we've listed our plans to support other categories of memory as > well. Hence it's called a memory controller While logical, the term is too generic. Memory [Allocation] Governor might be closer. Memory Quota Controller actually matches the already established terminology (quotas). Regardless, Andi's point remains: At minimum, the kconfig text needs to be clear for distributors and end-users as to why they'd want to enable this, or what reasons would cause them to not enable it. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org