From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>,
steiner@sgi.com, Paul Jackson <pj@sgi.com>,
akpm@osdl.org, dgc@sgi.com, Simon.Derr@bull.net,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/5] cpuset memory spread basic implementation
Date: Tue, 7 Feb 2006 18:28:48 +0100 [thread overview]
Message-ID: <200602071828.49370.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.62.0602070909080.24623@schroedinger.engr.sgi.com>
On Tuesday 07 February 2006 18:10, Christoph Lameter wrote:
> On Tue, 7 Feb 2006, Andi Kleen wrote:
>
> > On Tuesday 07 February 2006 13:30, Ingo Molnar wrote:
> >
> > > you are a bit biased towards low-latency NUMA setups i guess (read:
> > > Opterons) :-)
> >
> > Well they are the vast majority of NUMA systems Linux runs on.
>
> The opterons are some strange mix of SMP and NUMA system. The NUMA "nodes"
> are on the same motherboard
Actually it's not true - 8 socket systems are built out of two
boards. And there are much bigger systems upcomming.
> and therefore there are only small latencies
> involved. NUMA only gives small benefits.
That's also not true. Everytime I get memory placement for
process memory wrong users complain _very_ loudly and there
are clear benefits in benchmarks too.
-Andi
next prev parent reply other threads:[~2006-02-07 17:30 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-04 7:19 [PATCH 1/5] cpuset memory spread basic implementation Paul Jackson
2006-02-04 7:19 ` [PATCH 2/5] cpuset memory spread page cache implementation and hooks Paul Jackson
2006-02-04 23:49 ` Andrew Morton
2006-02-05 1:42 ` Paul Jackson
2006-02-05 1:54 ` Andrew Morton
2006-02-05 3:28 ` Christoph Lameter
2006-02-05 5:06 ` Andrew Morton
2006-02-05 6:08 ` Paul Jackson
2006-02-05 6:15 ` Andrew Morton
2006-02-05 6:28 ` Paul Jackson
2006-02-06 0:20 ` Paul Jackson
2006-02-06 5:51 ` Paul Jackson
2006-02-06 7:14 ` Pekka J Enberg
2006-02-06 7:42 ` Pekka J Enberg
2006-02-06 7:51 ` Pekka J Enberg
2006-02-06 17:32 ` Pekka Enberg
2006-02-04 7:19 ` [PATCH 3/5] cpuset memory spread slab cache implementation Paul Jackson
2006-02-04 23:49 ` Andrew Morton
2006-02-05 3:37 ` Christoph Lameter
2006-02-04 7:19 ` [PATCH 4/5] cpuset memory spread slab cache optimizations Paul Jackson
2006-02-04 23:50 ` Andrew Morton
2006-02-05 3:18 ` Paul Jackson
2006-02-04 23:50 ` Andrew Morton
2006-02-05 4:10 ` Paul Jackson
2006-02-04 7:19 ` [PATCH 5/5] cpuset memory spread slab cache hooks Paul Jackson
2006-02-06 4:37 ` Andrew Morton
2006-02-04 23:49 ` [PATCH 1/5] cpuset memory spread basic implementation Andrew Morton
2006-02-05 3:35 ` Christoph Lameter
2006-02-06 4:33 ` Andrew Morton
2006-02-06 5:50 ` Paul Jackson
2006-02-06 6:02 ` Andrew Morton
2006-02-06 6:17 ` Ingo Molnar
2006-02-06 7:22 ` Paul Jackson
2006-02-06 7:43 ` Ingo Molnar
2006-02-06 8:19 ` Paul Jackson
2006-02-06 8:22 ` Ingo Molnar
2006-02-06 8:40 ` Ingo Molnar
2006-02-06 9:03 ` Paul Jackson
2006-02-06 9:09 ` Ingo Molnar
2006-02-06 9:27 ` Paul Jackson
2006-02-06 9:37 ` Ingo Molnar
2006-02-06 20:22 ` Paul Jackson
2006-02-06 8:47 ` Paul Jackson
2006-02-06 8:51 ` Ingo Molnar
2006-02-06 9:09 ` Paul Jackson
2006-02-06 10:09 ` Andi Kleen
2006-02-06 10:11 ` Ingo Molnar
2006-02-06 10:16 ` Andi Kleen
2006-02-06 10:23 ` Ingo Molnar
2006-02-06 10:35 ` Andi Kleen
2006-02-06 14:42 ` Paul Jackson
2006-02-06 14:35 ` Paul Jackson
2006-02-06 16:48 ` Christoph Lameter
2006-02-06 17:11 ` Andi Kleen
2006-02-06 18:21 ` Christoph Lameter
2006-02-06 18:36 ` Andi Kleen
2006-02-06 18:43 ` Christoph Lameter
2006-02-06 18:48 ` Andi Kleen
2006-02-06 19:19 ` Christoph Lameter
2006-02-06 20:27 ` Paul Jackson
2006-02-06 18:43 ` Ingo Molnar
2006-02-06 20:01 ` Paul Jackson
2006-02-06 20:05 ` Ingo Molnar
2006-02-06 20:27 ` Christoph Lameter
2006-02-06 20:41 ` Ingo Molnar
2006-02-06 20:49 ` Christoph Lameter
2006-02-06 21:07 ` Ingo Molnar
2006-02-06 22:10 ` Christoph Lameter
2006-02-06 23:29 ` Ingo Molnar
2006-02-06 23:45 ` Paul Jackson
2006-02-07 0:19 ` Ingo Molnar
2006-02-07 1:17 ` David Chinner
2006-02-07 9:31 ` Andi Kleen
2006-02-07 11:53 ` Ingo Molnar
2006-02-07 12:14 ` Andi Kleen
2006-02-07 12:30 ` Ingo Molnar
2006-02-07 12:43 ` Andi Kleen
2006-02-07 12:58 ` Ingo Molnar
2006-02-07 13:14 ` Andi Kleen
2006-02-07 14:11 ` Ingo Molnar
2006-02-07 14:23 ` Andi Kleen
2006-02-07 17:11 ` Christoph Lameter
2006-02-07 17:29 ` Andi Kleen
2006-02-07 17:39 ` Christoph Lameter
2006-02-07 17:10 ` Christoph Lameter
2006-02-07 17:28 ` Andi Kleen [this message]
2006-02-07 17:42 ` Christoph Lameter
2006-02-07 17:51 ` Andi Kleen
2006-02-07 17:06 ` Christoph Lameter
2006-02-07 17:26 ` Andi Kleen
2006-02-04 23:50 ` Andrew Morton
2006-02-04 23:57 ` David S. Miller
2006-02-06 4:37 ` Andrew Morton
2006-02-06 6:02 ` Ingo Molnar
2006-02-06 6:56 ` Paul Jackson
2006-02-06 7:08 ` Andrew Morton
2006-02-06 7:39 ` Ingo Molnar
2006-02-06 8:22 ` Paul Jackson
2006-02-06 8:35 ` Paul Jackson
2006-02-06 9:32 ` Paul Jackson
2006-02-06 9:57 ` Andrew Morton
2006-02-06 9:18 ` Simon Derr
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