From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 14 Jan 2000 13:25:46 +0100 From: Jamie Lokier Subject: Re: [RFC] 2.3.39 zone balancing Message-ID: <20000114132546.A18109@pcep-jamie.cern.ch> References: <200001132140.NAA27848@google.engr.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <200001132140.NAA27848@google.engr.sgi.com>; from Kanoj Sarcar on Thu, Jan 13, 2000 at 01:40:09PM -0800 Sender: owner-linux-mm@kvack.org Return-Path: To: Kanoj Sarcar Cc: Andrea Arcangeli , Rik van Riel , Alan Cox , Linus Torvalds , linux-mm@kvack.org, linux-kernel@vger.rutgers.edu List-ID: Speaking of kswapd zone balancing. Can swap cache pages be moved from one zone to another, or even duplicated according to need later on? It would seem logical that when a page in the DMA zone is only held for swap cache, it's worth copying it to the regular zone and using the copy when the page is needed again to free up DMA pages without hitting the disk. I guess this sort of preemptive duplication is in a similar category to pre-zeroing. just a thought, -- Jamie -- 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.nl.linux.org/Linux-MM/