From: Michal Hocko <mhocko@suse.cz>
To: Amerigo Wang <amwang@redhat.com>
Cc: linux-kernel@vger.kernel.org, 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 13:58:38 +0200 [thread overview]
Message-ID: <20110621115838.GE8093@tiehlicka.suse.cz> (raw)
In-Reply-To: <20110621115201.GD8093@tiehlicka.suse.cz>
On Tue 21-06-11 13:52:02, Michal Hocko wrote:
> On Tue 21-06-11 16:10:42, 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.
>
> I am wondering why would you like to disable the feature on per-boot
> basis. Does transparent_hugepage=never bring any measurable overhead?
just found https://lkml.org/lkml/2011/6/20/245
--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9
Czech Republic
WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@suse.cz>
To: Amerigo Wang <amwang@redhat.com>
Cc: linux-kernel@vger.kernel.org, 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 13:58:38 +0200 [thread overview]
Message-ID: <20110621115838.GE8093@tiehlicka.suse.cz> (raw)
In-Reply-To: <20110621115201.GD8093@tiehlicka.suse.cz>
On Tue 21-06-11 13:52:02, Michal Hocko wrote:
> On Tue 21-06-11 16:10:42, 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.
>
> I am wondering why would you like to disable the feature on per-boot
> basis. Does transparent_hugepage=never bring any measurable overhead?
just found https://lkml.org/lkml/2011/6/20/245
--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9
Czech Republic
--
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next prev parent reply other threads:[~2011-06-21 11:58 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-21 8:10 [PATCH v2 1/4] mm: completely disable THP by transparent_hugepage=0 Amerigo Wang
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 8:10 ` Amerigo Wang
2011-06-21 14:44 ` Dave Hansen
2011-06-21 14:44 ` Dave Hansen
2011-06-21 20:17 ` Dave Hansen
2011-06-21 20:17 ` Dave Hansen
2011-06-22 1:23 ` David Rientjes
2011-06-22 1:23 ` David Rientjes
2011-06-22 3:06 ` Cong Wang
2011-06-22 3:06 ` Cong Wang
2011-06-22 3:29 ` David Rientjes
2011-06-22 3:29 ` David Rientjes
2011-06-22 5:40 ` Cong Wang
2011-06-22 5:40 ` Cong Wang
2011-06-22 6:32 ` David Rientjes
2011-06-22 6:32 ` David Rientjes
2011-06-22 11:07 ` Cong Wang
2011-06-22 11:07 ` Cong Wang
2011-06-22 14:40 ` Andrea Arcangeli
2011-06-22 14:40 ` Andrea Arcangeli
2011-06-23 6:51 ` Cong Wang
2011-06-23 6:51 ` Cong Wang
2011-06-21 8:10 ` [PATCH 3/4] mm: improve THP printk messages Amerigo Wang
2011-06-21 8:10 ` Amerigo Wang
2011-06-22 1:23 ` David Rientjes
2011-06-22 1:23 ` David Rientjes
2011-06-22 3:04 ` Cong Wang
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 8:10 ` Amerigo Wang
2011-06-21 13:32 ` Andrea Arcangeli
2011-06-21 13:32 ` Andrea Arcangeli
2011-06-22 3:13 ` Cong Wang
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 11:52 ` Michal Hocko
2011-06-21 11:58 ` Michal Hocko [this message]
2011-06-21 11:58 ` Michal Hocko
2011-06-21 13:30 ` Andrea Arcangeli
2011-06-21 13:30 ` Andrea Arcangeli
2011-06-22 3:11 ` Cong Wang
2011-06-22 3:11 ` Cong Wang
2011-06-22 1:16 ` David Rientjes
2011-06-22 1:16 ` David Rientjes
2011-06-22 3:08 ` Cong Wang
2011-06-22 3:08 ` Cong Wang
2011-06-22 3:24 ` David Rientjes
2011-06-22 3:24 ` David Rientjes
2011-06-22 5:45 ` Cong Wang
2011-06-22 5:45 ` Cong Wang
2011-06-22 6:23 ` David Rientjes
2011-06-22 6:23 ` David Rientjes
2011-06-22 11:08 ` Cong Wang
2011-06-22 11:08 ` Cong Wang
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