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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4E015D5C.4010809@redhat.com>
Date:	Wed, 22 Jun 2011 11:11:24 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Andrea Arcangeli <aarcange@...hat.com>
CC:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Randy Dunlap <rdunlap@...otime.net>,
	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21日 21:30, Andrea Arcangeli 写道:
> On Tue, Jun 21, 2011 at 04:10:42PM +0800, 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 think I already clarified this is not worth it. Removing sysfs
> registration is just pointless. If you really want to save ~8k of RAM,
> at most you can try to move the init of the khugepaged slots hash and
> the kmem_cache_init to the khugepaged deamon start but even that isn't
> so useful. Not registering into sysfs is just pointless and it's a
> gratuitous loss of a feature.

Sorry, I replied to you in the other thread, so I don't want to dup
it here.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/