From: David Rientjes <rientjes@google.com>
To: Amerigo Wang <amwang@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@xenotime.net>,
Andrea Arcangeli <aarcange@redhat.com>,
Rik van Riel <riel@redhat.com>,
Johannes Weiner <jweiner@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-doc@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0
Date: Tue, 21 Jun 2011 18:16:35 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1106211814250.5205@chino.kir.corp.google.com> (raw)
In-Reply-To: <1308643849-3325-1-git-send-email-amwang@redhat.com>
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.
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next prev parent reply other threads:[~2011-06-22 1:16 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-21 8:10 Amerigo Wang
2011-06-21 8:10 ` [PATCH v2 2/4] mm: make the threshold of enabling THP configurable Amerigo Wang
2011-06-21 14:44 ` Dave Hansen
2011-06-21 20:17 ` Dave Hansen
2011-06-22 1:23 ` David Rientjes
2011-06-22 3:06 ` Cong Wang
2011-06-22 3:29 ` David Rientjes
2011-06-22 5:40 ` Cong Wang
2011-06-22 6:32 ` David Rientjes
2011-06-22 11:07 ` Cong Wang
2011-06-22 14:40 ` Andrea Arcangeli
2011-06-23 6:51 ` Cong Wang
2011-06-21 8:10 ` [PATCH 3/4] mm: improve THP printk messages Amerigo Wang
2011-06-22 1:23 ` David Rientjes
2011-06-22 3:04 ` Cong Wang
2011-06-21 8:10 ` [PATCH 4/4] mm: introduce no_ksm to disable totally KSM Amerigo Wang
2011-06-21 13:32 ` Andrea Arcangeli
2011-06-22 3:13 ` Cong Wang
2011-06-21 11:52 ` [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0 Michal Hocko
2011-06-21 11:58 ` Michal Hocko
2011-06-21 13:30 ` Andrea Arcangeli
2011-06-22 3:11 ` Cong Wang
2011-06-22 1:16 ` David Rientjes [this message]
2011-06-22 3:08 ` Cong Wang
2011-06-22 3:24 ` David Rientjes
2011-06-22 5:45 ` Cong Wang
2011-06-22 6:23 ` David Rientjes
2011-06-22 11:08 ` Cong Wang
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