From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with SMTP id 8229E6B00E4 for ; Wed, 13 May 2009 06:12:26 -0400 (EDT) Received: by wa-out-1112.google.com with SMTP id v27so193810wah.22 for ; Wed, 13 May 2009 03:12:36 -0700 (PDT) Date: Wed, 13 May 2009 19:12:21 +0900 From: Minchan Kim Subject: Re: [PATCH] Kconfig: CONFIG_UNEVICTABLE_LRU move into EMBEDDED submenu Message-Id: <20090513191221.674bc543.minchan.kim@barrios-desktop> In-Reply-To: <20090513175539.723A.A69D9226@jp.fujitsu.com> References: <20090513172904.7234.A69D9226@jp.fujitsu.com> <20090513175152.1590c117.minchan.kim@barrios-desktop> <20090513175539.723A.A69D9226@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro Cc: Minchan Kim , LKML , linux-mm , Andrew Morton , Lee Schermerhorn , Matt Mackall , David Woodhouse List-ID: On Wed, 13 May 2009 17:59:34 +0900 (JST) KOSAKI Motohiro wrote: > > Hi, Kosaki. > > > > On Wed, 13 May 2009 17:30:45 +0900 (JST) > > KOSAKI Motohiro wrote: > > > > > Subject: [PATCH] Kconfig: CONFIG_UNEVICTABLE_LRU move into EMBEDDED submenu > > > > > > Almost people always turn on CONFIG_UNEVICTABLE_LRU. this configuration is > > > used only embedded people. > > > > I think at least embedded guys don't need it. > > But I am not sure other guys. > > perhaps, I and you live in another embedded world. Each people always have a different viewpoint. :) > > > > +config UNEVICTABLE_LRU > > > + bool "Add LRU list to track non-evictable pages" if EMBEDDED > > > + default y > > > > If you want to move, it would be better as following. > > > > config UNEVICTABLE_LRU > > bool "Add LRU list to track non-evictable pages" if EMBEDDED > > default !EMBEDDED > > No. > As far as I know, many embedded guys use this configuration. > they hate unexpected latency by reclaim. !UNEVICTABLE_LRU increase > unexpectability largely. As I said previous(http://lkml.org/lkml/2009/3/16/209), Many embedded environment have a small ram. It doesn't have a big impact in such case. Let CCed embedded matainers. I won't have a objection if embedded maintainers ack this. Thanks for your effort for embdded. -- Kinds Regards Minchan Kim -- 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