From: Christoph Lameter <clameter@sgi.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-mm@kvack.org, haveblue@us.ibm.com
Subject: Re: One idea to free up page flags on NUMA
Date: Sat, 23 Sep 2006 09:39:30 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0609230937140.15303@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <200609231804.40348.ak@suse.de>
On Sat, 23 Sep 2006, Andi Kleen wrote:
> And what would we use them for?
Maybe a container number?
Anyways the scheme also would reduce the number of lookups needed and
thus the general footprint of the VM using sparse.
I just looked at the arch code for i386 and x86_64 and it seems that both
already have page tables for all of memory. It seems that a virtual memmap
like this would just eliminate sparse overhead and not add any additional
page table overhead.
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next prev parent reply other threads:[~2006-09-23 16:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-23 3:02 Christoph Lameter
2006-09-23 16:04 ` Andi Kleen
2006-09-23 16:39 ` Christoph Lameter [this message]
2006-09-23 18:43 ` Andi Kleen
2006-09-24 1:57 ` Christoph Lameter
2006-09-24 7:24 ` Andi Kleen
2006-09-25 0:31 ` Christoph Lameter
2006-09-25 3:04 ` Andi Kleen
2006-09-25 3:46 ` Christoph Lameter
2006-09-23 19:24 ` Dave Hansen
2006-09-24 1:56 ` Christoph Lameter
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