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 5D7496B0186 for ; Tue, 21 Jun 2011 07:58:42 -0400 (EDT) Date: Tue, 21 Jun 2011 13:58:38 +0200 From: Michal Hocko Subject: Re: [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0 Message-ID: <20110621115838.GE8093@tiehlicka.suse.cz> References: <1308643849-3325-1-git-send-email-amwang@redhat.com> <20110621115201.GD8093@tiehlicka.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110621115201.GD8093@tiehlicka.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Amerigo Wang Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, Randy Dunlap , Andrea Arcangeli , Rik van Riel , Johannes Weiner , KAMEZAWA Hiroyuki , linux-doc@vger.kernel.org, linux-mm@kvack.org On Tue 21-06-11 13:52:02, Michal Hocko wrote: > On Tue 21-06-11 16:10:42, 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. > > I am wondering why would you like to disable the feature on per-boot > basis. Does transparent_hugepage=never bring any measurable overhead? just found https://lkml.org/lkml/2011/6/20/245 -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- 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