Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754891Ab1CVHfU (ORCPT ); Tue, 22 Mar 2011 03:35:20 -0400 Received: from cantor.suse.de ([195.135.220.2]:52893 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753425Ab1CVHfR (ORCPT ); Tue, 22 Mar 2011 03:35:17 -0400 Date: Tue, 22 Mar 2011 08:35:14 +0100 From: Michal Hocko To: Ying Han Cc: KAMEZAWA Hiroyuki , Daisuke Nishimura , Andrew Morton , linux-mm@kvack.org, LKML Subject: Re: cgroup: real meaning of memory.usage_in_bytes Message-ID: <20110322073514.GB12940@tiehlicka.suse.cz> References: <20110318152532.GB18450@tiehlicka.suse.cz> <20110321093419.GA26047@tiehlicka.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1539 Lines: 56 On Mon 21-03-11 10:22:41, Ying Han wrote: [...] > > Michal, > > Can you help to post the test result after applying the patch? The result of the LTP test is: TEST 4: MEMORY CONTROLLER TESTING RUNNING SETUP..... WARN:/dev/memctl already exist..overwriting Cleanup called TEST STARTED: Please avoid using system while this test executes memory usage from memory.usage_in_bytes= 62955520 memory usage from memory.stat= 62955520 TINFO Memory Resource Controller: stat check test passes first run Test continues to run the second step. memory usage from memory.usage_in_bytes= 78643200 memory usage from memory.stat=78643200 TPASS Memory Resource Controller: stat check test PASSED Memory Resource Controller test executed successfully. Cleanup called The attached simple test case result is: # mkdir /dev/memctl; mount -t cgroup -omemory cgroup /dev/memctl; cd /dev/memctl # mkdir group_1; cd group_1; echo 100M > memory.limit_in_bytes # cat memory.{usage_in_bytes,stat} 0 cache 0 rss 0 [start the test case, add its pid to the group and let it fault in] # cat memory.{usage_in_bytes,stat} 4096 cache 0 rss 4096 [let it finish] # cat memory.{usage_in_bytes,stat} 0 cache 0 rss 0 Thanks -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/