From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f197.google.com (mail-pf0-f197.google.com [209.85.192.197]) by kanga.kvack.org (Postfix) with ESMTP id 5C9616B0069 for ; Mon, 7 Nov 2016 01:13:10 -0500 (EST) Received: by mail-pf0-f197.google.com with SMTP id 17so45006212pfy.2 for ; Sun, 06 Nov 2016 22:13:10 -0800 (PST) Received: from lgeamrelo12.lge.com (LGEAMRELO12.lge.com. [156.147.23.52]) by mx.google.com with ESMTP id b5si1472526pgn.280.2016.11.06.22.13.08 for ; Sun, 06 Nov 2016 22:13:09 -0800 (PST) Date: Mon, 7 Nov 2016 15:15:00 +0900 From: Joonsoo Kim Subject: Re: [PATCH v6 2/6] mm/cma: introduce new zone, ZONE_CMA Message-ID: <20161107061500.GA21159@js1304-P5Q-DELUXE> References: <1476414196-3514-1-git-send-email-iamjoonsoo.kim@lge.com> <1476414196-3514-3-git-send-email-iamjoonsoo.kim@lge.com> <58184B28.8090405@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <58184B28.8090405@hisilicon.com> Sender: owner-linux-mm@kvack.org List-ID: To: Chen Feng Cc: Andrew Morton , Rik van Riel , Johannes Weiner , mgorman@techsingularity.net, Laura Abbott , Minchan Kim , Marek Szyprowski , Michal Nazarewicz , "Aneesh Kumar K.V" , Vlastimil Babka , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Tue, Nov 01, 2016 at 03:58:32PM +0800, Chen Feng wrote: > Hello, I hava a question on cma zone. > > When we have cma zone, cma zone will be the highest zone of system. > > In android system, the most memory allocator is ION. Media system will > alloc unmovable memory from it. > > On low memory scene, will the CMA zone always do balance? Allocation request for low zone (normal zone) would not cause CMA zone to be balanced since it isn't helpful. > Should we transmit the highest available zone to kswapdi 1/4 ? It is already done when necessary. Thanks. -- 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