From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 14 May 2008 17:02:36 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC/PATCH 0/6] memcg: peformance improvement at el. v3 Message-Id: <20080514170236.23c9ddd7.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: LKML Cc: "linux-mm@kvack.org" , "balbir@linux.vnet.ibm.com" , "lizf@cn.fujitsu.com" , "xemul@openvz.org" , "yamamoto@valinux.co.jp" , "hugh@veritas.com" , Andrew Morton List-ID: This set is for memory resource controller, reviewer and testers. Updated against 2.6.26-rc2 and added fixes. This set does - remove refcnt from page_cgroup. By this, codes can be simplified and we can avoid tons of unnecessary calls just for maintain refcnt. - handle swap-cache, which is now ignored by memory resource controller. - small optimization. - make force_empty to drop pages. (NEW) major changes : v2 -> v3 - fixed shared memory handling. - added a call to request recalaim memory from specified memcg (NEW) for shmem. - added drop_all_pages_in_mem_cgroup before calling force_empty() - dropped 3 patches because it's already sent to -mm queue. 1/6 -- make force_empty to drop pages. (NEW) 2/6 -- remove refcnt from page_cgroup (shmem handling is fixed.) 3/6 -- handle swap cache 4/6 -- add an interface to reclaim memory from memcg (NEW) (for shmem) 5/6 -- small optimzation with likely()/unlikely() 6/6 -- remove redundant check. If positive feedback, I'd like to send some of them agaisnt -mm queue. This is based on - 2.6.26-rc2 - memcg-avoid-unnecessary-initialization.patch (in -mm queue) - memcg-make-global-var-read_mostly.patch (in -mm queue) - memcg-better-migration-handling.patch (in -mm queue) tested on x86-64 box. Seems to work very well. Any comments are welcome. 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