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From: Andi Kleen <ak@suse.de>
To: Brent Casavant <bcasavan@sgi.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	hugh@veritas.com, ak@suse.de
Subject: Re: [PATCH] Use MPOL_INTERLEAVE for tmpfs files
Date: Tue, 2 Nov 2004 10:13:06 +0100	[thread overview]
Message-ID: <20041102091306.GC21619@wotan.suse.de> (raw)
In-Reply-To: <Pine.SGI.4.58.0411011901540.77038@kzerza.americas.sgi.com>

> And now, for your viewing pleasure...

Patch is fine except that I would add a sysctl to enable/disable this.

I can see that some people would like to not have interleave policy
(e.g. when you use tmpfs as a large memory extender on 32bit NUMA
then you probably want local affinity) 

Best if you name it /proc/sys/vm/numa-tmpfs-rr

Default can be set to one for now.

-Andi

WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: Brent Casavant <bcasavan@sgi.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	hugh@veritas.com, ak@suse.de
Subject: Re: [PATCH] Use MPOL_INTERLEAVE for tmpfs files
Date: Tue, 2 Nov 2004 10:13:06 +0100	[thread overview]
Message-ID: <20041102091306.GC21619@wotan.suse.de> (raw)
In-Reply-To: <Pine.SGI.4.58.0411011901540.77038@kzerza.americas.sgi.com>

> And now, for your viewing pleasure...

Patch is fine except that I would add a sysctl to enable/disable this.

I can see that some people would like to not have interleave policy
(e.g. when you use tmpfs as a large memory extender on 32bit NUMA
then you probably want local affinity) 

Best if you name it /proc/sys/vm/numa-tmpfs-rr

Default can be set to one for now.

-Andi
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  parent reply	other threads:[~2004-11-02  9:56 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-02  1:07 [PATCH] Use MPOL_INTERLEAVE for tmpfs files Brent Casavant
2004-11-02  1:07 ` Brent Casavant
2004-11-02  1:43 ` Dave Hansen
2004-11-02  1:43   ` Dave Hansen
2004-11-02  9:13 ` Andi Kleen [this message]
2004-11-02  9:13   ` Andi Kleen
2004-11-02 15:46 ` Martin J. Bligh
2004-11-02 15:46   ` Martin J. Bligh
2004-11-02 15:55   ` Andi Kleen
2004-11-02 15:55     ` Andi Kleen
2004-11-02 16:55     ` Martin J. Bligh
2004-11-02 16:55       ` Martin J. Bligh
2004-11-02 22:17       ` Brent Casavant
2004-11-02 22:17         ` Brent Casavant
2004-11-02 22:51         ` Martin J. Bligh
2004-11-02 22:51           ` Martin J. Bligh
2004-11-03  1:12           ` Brent Casavant
2004-11-03  1:12             ` Brent Casavant
2004-11-03  1:30             ` Martin J. Bligh
2004-11-03  8:44           ` Hugh Dickins
2004-11-03  8:44             ` Hugh Dickins
2004-11-03  9:01             ` Andi Kleen
2004-11-03  9:01               ` Andi Kleen
2004-11-03 16:32               ` Brent Casavant
2004-11-03 16:32                 ` Brent Casavant
2004-11-03 21:00                 ` Martin J. Bligh
2004-11-03 21:00                   ` Martin J. Bligh
2004-11-08 19:58                   ` Brent Casavant
2004-11-08 19:58                     ` Brent Casavant
2004-11-08 20:57                     ` Martin J. Bligh
2004-11-08 20:57                       ` Martin J. Bligh
2004-11-09 19:04                     ` Hugh Dickins
2004-11-09 19:04                       ` Hugh Dickins
2004-11-09 20:09                       ` Martin J. Bligh
2004-11-09 20:09                         ` Martin J. Bligh
2004-11-09 21:08                         ` Hugh Dickins
2004-11-09 21:08                           ` Hugh Dickins
2004-11-09 22:07                           ` Martin J. Bligh
2004-11-09 22:07                             ` Martin J. Bligh
2004-11-10  2:41                       ` Brent Casavant
2004-11-10  2:41                         ` Brent Casavant
2004-11-10 14:20                         ` Hugh Dickins
2004-11-10 14:20                           ` Hugh Dickins
2004-11-11 19:48                       ` Hugh Dickins
2004-11-11 19:48                         ` Hugh Dickins
2004-11-11 23:10                         ` Brent Casavant
2004-11-11 23:10                           ` Brent Casavant
2004-11-15 22:07                         ` Brent Casavant
2004-11-15 22:07                           ` Brent Casavant

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