linux-kernel - Re: [PATCH 3/8] Preserve local node for KSM copies

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <alpine.DEB.2.00.1102220945210.16060@router.home>
Date:	Tue, 22 Feb 2011 09:47:26 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, aarcange@...hat.com,
	lwoodman@...hat.com, Andi Kleen <ak@...ux.intel.com>,
	arcange@...hat.com
Subject: Re: [PATCH 3/8] Preserve local node for KSM copies

On Mon, 21 Feb 2011, Andi Kleen wrote:

> Add a alloc_page_vma_node that allows passing the "local" node in.
> Use it in ksm to allocate copy pages on the same node as
> the original as possible.

Why would that be useful? The shared page could be on a node that is not
near the process that maps the page. Would it not be better to allocate on
the node that is local to the process that maps the page?
--
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/