DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to:
	cc:content-type:content-transfer-encoding:x-system-of-record;
	b=Rnopg1T1ekWnJIUeS/4f6zq/vsneoouMkntC7sHE+n7GeBx+2M7x2U9DTn4bEHPl5
	trk4axjx15rTJxqm4kRGg==
MIME-Version: 1.0
In-Reply-To: <alpine.DEB.2.00.0903031401260.29042@chino.kir.corp.google.com>
References: <alpine.DEB.2.00.0903022009490.17284@chino.kir.corp.google.com>
	 <alpine.DEB.2.00.0903022011430.17284@chino.kir.corp.google.com>
	 <alpine.DEB.1.10.0903031136380.26454@qirst.com>
	 <alpine.DEB.2.00.0903030900580.6643@chino.kir.corp.google.com>
	 <alpine.DEB.1.10.0903031345150.9466@qirst.com>
	 <alpine.DEB.2.00.0903031057110.15900@chino.kir.corp.google.com>
	 <alpine.DEB.1.10.0903031509380.25612@qirst.com>
	 <alpine.DEB.2.00.0903031330090.23523@chino.kir.corp.google.com>
	 <6599ad830903031355y3e12dec6n4b7b675d354f8e72@mail.gmail.com>
	 <alpine.DEB.2.00.0903031401260.29042@chino.kir.corp.google.com>
Date: Tue, 3 Mar 2009 16:53:46 -0800
Message-ID: <6599ad830903031653t231eb921md60a1aa21effa87b@mail.gmail.com>
Subject: Re: [patch 2/2] slub: enforce cpuset restrictions for cpu slabs
From: Paul Menage <menage@google.com>
To: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux-foundation.org>,
       Pekka Enberg <penberg@cs.helsinki.fi>,
       Andrew Morton <akpm@linux-foundation.org>,
       Randy Dunlap <randy.dunlap@oracle.com>, linux-kernel@vger.kernel.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 746
Lines: 19

On Tue, Mar 3, 2009 at 2:29 PM, David Rientjes <rientjes@google.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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/