From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 3 Aug 2007 09:27:55 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH] 2.6.23-rc1-mm1 - fix missing numa_zonelist_order sysctl Message-Id: <20070803092755.55220aa0.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <1186067258.5040.33.camel@localhost> References: <1185994972.5059.91.camel@localhost> <20070802094445.6495e25d.kamezawa.hiroyu@jp.fujitsu.com> <1186067258.5040.33.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Lee Schermerhorn Cc: Andrew Morton , linux-kernel , linux-mm , Christoph Lameter List-ID: On Thu, 02 Aug 2007 11:07:38 -0400 Lee Schermerhorn wrote: > Of course, I don't have any idea of what is a "reasonable amount". > Guess I could look at non-movable zone memory usage in a system at > typical or peak load to get an idea. Anyone have any data in this > regard? > I'm sorry that I have no data and idea. ZONE_MOVABLE is too young to be used under business workload... just I feel... Considering i686 which divides memory into NORMAL and HIGHMEM, it seems that 4G to 8G servers looks stable under various workload in my experience. Then, at least, 12.5% to 25% of "Total Memory - Hugepages" memory should be under ZONE_NORMAL. But this is from experience of 32bit/SMP :( Thanks, -Kame -- 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