linux-kernel - Re: [PATCH 12/15] drivers: add Contiguous Memory Allocator

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Message-ID: <CAJd=RBCqw=4AEDZU5aPexX2+xVKVhB+uo-ta2hviSAJO63axvw@mail.gmail.com>
Date:	Mon, 6 Feb 2012 20:51:54 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Michal Nazarewicz <mina86@...a86.com>
Cc:	Marek Szyprowski <m.szyprowski@...sung.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-media@...r.kernel.org, linux-mm@...ck.org,
	linaro-mm-sig@...ts.linaro.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 12/15] drivers: add Contiguous Memory Allocator

2012/2/5 Michal Nazarewicz <mina86@...a86.com>:
> On Sun, 05 Feb 2012 05:25:40 +0100, Hillf Danton <dhillf@...il.com> wrote:
>>
>> Without boot mem reservation, what is the successful rate of CMA to
>> serve requests of 1MiB, 2MiB, 4MiB and 8MiB chunks?
>
>
> CMA will work as long as you manage to get some pageblocks marked as
> MIGRATE_CMA and move all non-movable pages away.  You might try and get it
> done after system has booted but we have not tried nor tested it.

Better to include whatever test results in change log.

And no more questions ;)
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