From: Christoph Lameter <clameter@sgi.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Mundt <lethal@linux-sh.org>,
linux-mm@kvack.org, ak@suse.de, hugh@veritas.com,
lee.schermerhorn@hp.com
Subject: Re: [PATCH] numa: mempolicy: dynamic interleave map for system init.
Date: Thu, 7 Jun 2007 19:47:09 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0706071942240.26636@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070607180108.0eeca877.akpm@linux-foundation.org>
On Thu, 7 Jun 2007, Andrew Morton wrote:
> Well I took silence as assent.
Well, grudgingly. How far are we willing to go to support these asymmetric
setups? The NUMA code initially was designed for mostly symmetric systems
with roughly the same amount of memory on each node. The farther we go
from this the more options we will have to add special casing to deal with
these imbalances.
With memoryless nodes we already have one issue that will ripple through
the kernel likely requiring numerous modifications and special casing.
Then we now have the ZONE_DMA issues reording the zonelists. Now we will
support systems with 1MB size nodes? We will need to modify the slab
allocators to only allocate on special processors?
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next prev parent reply other threads:[~2007-06-08 2:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 1:17 Paul Mundt
2007-06-08 1:01 ` Andrew Morton
2007-06-08 2:47 ` Christoph Lameter [this message]
2007-06-08 3:01 ` Andrew Morton
2007-06-08 3:11 ` Christoph Lameter
2007-06-08 3:25 ` Paul Mundt
2007-06-08 3:49 ` Christoph Lameter
2007-06-08 4:13 ` Paul Mundt
2007-06-08 4:27 ` Christoph Lameter
2007-06-08 6:05 ` Paul Mundt
2007-06-08 6:09 ` Christoph Lameter
2007-06-08 6:27 ` Paul Mundt
2007-06-08 6:43 ` Christoph Lameter
2007-06-08 14:50 ` Matt Mackall
2007-06-12 2:36 ` Nick Piggin
2007-06-12 9:43 ` Paul Mundt
2007-06-12 15:32 ` Matt Mackall
2007-06-13 2:10 ` Nick Piggin
2007-06-13 3:12 ` Matt Mackall
2007-06-13 2:53 ` Paul Mundt
2007-06-13 3:16 ` Matt Mackall
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