Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755634Ab3E1UIn (ORCPT ); Tue, 28 May 2013 16:08:43 -0400 Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120]:60450 "EHLO cdptpa-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755033Ab3E1UIl (ORCPT ); Tue, 28 May 2013 16:08:41 -0400 X-Authority-Analysis: v=2.0 cv=Xpd4yC59 c=1 sm=0 a=/DbS/tiKggfTkRRHPZEB4g==:17 a=Qsx_du5GiBkA:10 a=bfzWQn4VrGAA:10 a=xorsMp-LQb0A:10 a=S1A5HrydsesA:10 a=IkcTkHD0fZMA:10 a=fxJcL_dCAAAA:8 a=d66X4gvnlFEA:10 a=QfKxxUxMAAAA:8 a=V5q5d3fyYX60JFsPVPwA:9 a=QEXdDO2ut3YA:10 a=/DbS/tiKggfTkRRHPZEB4g==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.78.168.186 Message-ID: <51A50EC4.4090108@ubuntu.com> Date: Tue, 28 May 2013 16:08:36 -0400 From: Phillip Susi User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: "Srivatsa S. Bhat" CC: Simon Jeons , akpm@linux-foundation.org, mgorman@suse.de, matthew.garrett@nebula.com, dave@sr71.net, rientjes@google.com, riel@redhat.com, arjan@linux.intel.com, srinivas.pandruvada@linux.intel.com, maxime.coquelin@stericsson.com, loic.pallardy@stericsson.com, kamezawa.hiroyu@jp.fujitsu.com, lenb@kernel.org, rjw@sisk.pl, gargankita@gmail.com, paulmck@linux.vnet.ibm.com, amit.kachhap@linaro.org, svaidy@linux.vnet.ibm.com, andi@firstfloor.org, wujianguo@huawei.com, kmpark@infradead.org, thomas.abraham@linaro.org, santosh.shilimkar@ti.com, linux-pm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v2 00/15][Sorted-buddy] mm: Memory Power Management References: <20130409214443.4500.44168.stgit@srivatsabhat.in.ibm.com> <5170D781.3000102@gmail.com> <5170EE4F.9030908@linux.vnet.ibm.com> In-Reply-To: <5170EE4F.9030908@linux.vnet.ibm.com> X-Enigmail-Version: 1.5.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1436 Lines: 32 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 4/19/2013 3:12 AM, Srivatsa S. Bhat wrote: > But going further, as I had mentioned in my TODO list, we can be > smarter than this while doing compaction to evacuate memory regions > - we can choose to migrate only the active pages, and leave the > inactive pages alone. Because, the goal is to actually consolidate > the *references* and not necessarily the *allocations* themselves. That would help with keeping references compact to allow use of the low power states, but it would also be nice to keep allocations compact, and completely power off a bank of ram with no allocations. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJRpQ7EAAoJEJrBOlT6nu75wqYH/Aq18xGwk3QCJPEBb3BQX4be NY0JfHH9sHE7CFH4t13qpwNj/+N73xBg+TumY2qekUxqfwYSRo3hDhPRonlW/eDI X2AaEGDs8+aQT+QY8bAZnZFHFX8ZayNYOsNCewEV8djZDll2l+fOaFjVfZAwuQLK KtsMxjhlTzqMleRxVpZFLtVPG4GzLRITifKlBRQ+ffrO1zTTMI7glvM+IygIa5vS ajOCI0Nis1Rst2cOsrxfWc+DKN+gnI6c/qTsHarPD5zda1AFwe9DzWQ7EGiqnbJq 39vJmGIsspwrEPbaK0VX5dVYp85Bvd03EudeEish4EHVmH+hphpFokxoypRJePg= =Flf3 -----END PGP SIGNATURE----- -- 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/