From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id A7C4E6B024D for ; Tue, 21 Jun 2011 23:08:50 -0400 (EDT) Message-ID: <4E015CB8.1010300@redhat.com> Date: Wed, 22 Jun 2011 11:08:40 +0800 From: Cong Wang MIME-Version: 1.0 Subject: Re: [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0 References: <1308643849-3325-1-git-send-email-amwang@redhat.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org List-ID: To: David Rientjes Cc: linux-kernel@vger.kernel.org, Andrew Morton , Randy Dunlap , Andrea Arcangeli , Rik van Riel , Johannes Weiner , KAMEZAWA Hiroyuki , linux-doc@vger.kernel.org, linux-mm@kvack.org ao? 2011a1'06ae??22ae?JPY 09:16, David Rientjes a??e??: > On Tue, 21 Jun 2011, Amerigo Wang wrote: > >> Introduce "transparent_hugepage=0" to totally disable THP. >> "transparent_hugepage=never" means setting THP to be partially >> disabled, we need a new way to totally disable it. >> > > Why can't you just compile it off so you never even compile > mm/huge_memory.c in the first place and save the space in the kernel image > as well? Having the interface available to enable the feature at runtime > is worth the savings this patch provides, in my opinion. https://lkml.org/lkml/2011/6/20/506 -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org