linux-kernel - Re: [patch 2/2] slub: enforce cpuset restrictions for cpu slabs

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Message-ID: <6599ad830903031653t231eb921md60a1aa21effa87b@mail.gmail.com>
Date:	Tue, 3 Mar 2009 16:53:46 -0800
From:	Paul Menage <menage@...gle.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Christoph Lameter <cl@...ux-foundation.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] slub: enforce cpuset restrictions for cpu slabs

On Tue, Mar 3, 2009 at 2:29 PM, David Rientjes <rientjes@...gle.com> wrote:
>
> That would help for cpusets that are looking for NUMA optimizations (i.e.
> probably long-lived objects with local affinity) but would not ensure
> memory isolation from tasks in other exclusive cpusets from allocating on
> my slab.

That would be the sysadmin's choice, if they set these other cpusets
with slab_hardwall=false.

Presumably in most cases all cpusets would have slab_hardwall set to
the same value.

Paul
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