linux-kernel - Re: [PATCH v2 1/4] mm: completely disable THP by transparent

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Message-ID: <4E015CB8.1010300@redhat.com>
Date:	Wed, 22 Jun 2011 11:08:40 +0800
From:	Cong Wang <amwang@...hat.com>
To:	David Rientjes <rientjes@...gle.com>
CC:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <jweiner@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-doc@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0

于 2011年06月22日 09:16, David Rientjes 写道:
> On Tue, 21 Jun 2011, Amerigo Wang wrote:
>
>> Introduce "transparent_hugepage=0" to totally disable THP.
>> "transparent_hugepage=never" means setting THP to be partially
>> disabled, we need a new way to totally disable it.
>>
>
> Why can't you just compile it off so you never even compile
> mm/huge_memory.c in the first place and save the space in the kernel image
> as well?  Having the interface available to enable the feature at runtime
> is worth the savings this patch provides, in my opinion.

https://lkml.org/lkml/2011/6/20/506
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