From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx102.postini.com [74.125.245.102]) by kanga.kvack.org (Postfix) with SMTP id 65FF56B0006 for ; Fri, 1 Mar 2013 12:48:49 -0500 (EST) Date: Fri, 1 Mar 2013 17:48:52 +0000 From: Alan Cox Subject: Re: [RFC PATCH v2 1/2] mm: tuning hardcoded reserved memory Message-ID: <20130301174852.5d568191@www.etchedpixels.co.uk> In-Reply-To: <20130228034803.GB3829@localhost.localdomain> References: <20130227205629.GA8429@localhost.localdomain> <20130228141200.3fe7f459.akpm@linux-foundation.org> <20130228034803.GB3829@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Shewmaker Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org The 3% reserve was added to the original code *because* users kept hitting problems where they couldn't recover. I suspect the tunable should nowdays be something related to min(3%, someconstant), at the time we did the 3% I think 1GB was an "enterprise system" ;) Alan -- 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