From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 16 Feb 2005 17:08:33 +0100 From: Andi Kleen Subject: Re: [RFC 2.6.11-rc2-mm2 7/7] mm: manual page migration -- sys_page_migrate Message-ID: <20050216160833.GB6604@wotan.suse.de> References: <20050215185943.GA24401@lnx-holt.americas.sgi.com> <16914.28795.316835.291470@wombat.chubb.wattle.id.au> <421283E6.9030707@sgi.com> <31650000.1108511464@flay> <421295FB.3050005@sgi.com> <20050216004401.GB8237@wotan.suse.de> <51210000.1108515262@flay> <20050216100229.GB14545@wotan.suse.de> <232990000.1108567298@[10.10.2.4]> <20050216074923.63cf1b6b.pj@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050216074923.63cf1b6b.pj@sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Paul Jackson Cc: "Martin J. Bligh" , ak@suse.de, raybry@sgi.com, peterc@gelato.unsw.edu.au, raybry@austin.rr.com, linux-mm@kvack.org List-ID: On Wed, Feb 16, 2005 at 07:49:23AM -0800, Paul Jackson wrote: > Martin wrote: > > From reading the code (not actual experiments, yet), it seems like we won't > > even wake up the local kswapd until all the nodes are full. And ... > > Martin - is there a Cliff Notes summary you could provide of this > subthread you and Andi are having? I got lost somewhere along the way. I didn't really have much thread, but as far as I understood it Martin just wants kswapd to be a bit more aggressive in making sure all nodes always have local memory to allocate from. I don't see it as a pressing problem right now, but it may help for some memory intensive workloads a bit (see numastat numa_miss output for various nodes on how often a "wrong node" fallback happens) -Andi -- 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: aart@kvack.org