From: Pekka Enberg <penberg@kernel.org>
To: Maxime Coquelin <maxime.coquelin@stericsson.com>
Cc: Mel Gorman <mel@csn.ul.ie>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linaro-mm-sig@lists.linaro.org" <linaro-mm-sig@lists.linaro.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Linus WALLEIJ <linus.walleij@stericsson.com>,
Andrea GALLO <andrea.gallo@stericsson.com>,
Vincent GUITTOT <vincent.guittot@stericsson.com>,
Philippe LANGLAIS <philippe.langlais@stericsson.com>,
Loic PALLARDY <loic.pallardy@stericsson.com>
Subject: Re: [RFCv1 3/6] PASR: mm: Integrate PASR in Buddy allocator
Date: Tue, 31 Jan 2012 14:46:46 +0200 [thread overview]
Message-ID: <CAOJsxLE_iby+-EGzqXDc9D=Db7mm1NDDqdHqN_a+mZAQfLBrFA@mail.gmail.com> (raw)
In-Reply-To: <4F26CAD1.2000209@stericsson.com>
On Mon, Jan 30, 2012 at 6:52 PM, Maxime Coquelin
<maxime.coquelin@stericsson.com> wrote:
>> What is more likely is that you will get pushed to doing something like
>> periodically scanning memory as part of a separate power management
>> module and calling into PASR if regions of memory that are found that
>> can be powered down in some ways.
>
> With this solution, we need in any case to add some hooks in the allocator
> to ensure the pages being allocated are refreshed.
Why do you insist on making this happen at page level when you're only
able to power off *much* larger chunks?
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next prev parent reply other threads:[~2012-01-31 12:46 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-30 13:33 [RFCv1 0/6] PASR: Partial Array Self-Refresh Framework Maxime Coquelin
2012-01-30 13:33 ` [RFCv1 1/6] PASR: Initialize DDR layout Maxime Coquelin
2012-01-30 13:33 ` [RFCv1 2/6] PASR: Add core Framework Maxime Coquelin
2012-01-30 13:33 ` [RFCv1 3/6] PASR: mm: Integrate PASR in Buddy allocator Maxime Coquelin
2012-01-30 15:22 ` Mel Gorman
2012-01-30 16:52 ` Maxime Coquelin
2012-01-31 12:15 ` Maxime Coquelin
2012-01-31 14:01 ` Mel Gorman
2012-01-31 18:55 ` Maxime Coquelin
2012-02-03 11:44 ` Mel Gorman
2012-01-31 12:46 ` Pekka Enberg [this message]
2012-01-30 13:33 ` [RFCv1 4/6] PASR: Call PASR initialization Maxime Coquelin
2012-01-30 13:33 ` [RFCv1 5/6] PASR: Add Documentation Maxime Coquelin
2012-02-02 3:51 ` Randy Dunlap
2012-02-02 17:12 ` Maxime Coquelin
2012-01-30 13:33 ` [RFCv1 6/6] PASR: Ux500: Add PASR support Maxime Coquelin
2012-01-30 13:53 ` [RFCv1 0/6] PASR: Partial Array Self-Refresh Framework Ingo Molnar
2012-01-30 14:19 ` Maxime Coquelin
2012-01-31 12:39 ` Ingo Molnar
2012-01-31 14:48 ` Maxime Coquelin
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