From: Andi Kleen <ak@suse.de>
To: Rik van Riel <riel@redhat.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, yogyas@gmail.com
Subject: Re: How much kernel memory is in 64-bit OS ?
Date: 18 Sep 2006 10:31:21 +0200 [thread overview]
Message-ID: <p73odtd4luu.fsf@verdi.suse.de> (raw)
In-Reply-To: <450DE3DE.50301@redhat.com>
Rik van Riel <riel@redhat.com> writes:
>
> However, all 64 bit architectures have one thing in common.
> There is so much address space available for both kernel and
> userspace that we won't have to worry about a shortage for a
> very long time.
Nearly.
The x86-64 port started off with a 512GB user space VM limit, and then
that later was extended with 4 level page tables because it wasn't
quite enough for everybody.
-Andi
next prev parent reply other threads:[~2006-09-18 8:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-16 11:34 How much kernel memory is in 64-bit OS ? yogeshwar sonawane
2006-09-18 0:10 ` Rik van Riel
2006-09-18 8:31 ` Andi Kleen [this message]
2006-09-18 8:35 ` Jan Engelhardt
2006-09-18 12:30 ` Rik van Riel
2006-09-18 12:34 ` Jan Engelhardt
2006-09-18 13:30 ` Kyle Moffett
2006-09-18 9:51 ` yogeshwar sonawane
2006-09-18 13:39 ` Helge Hafting
2006-09-18 17:22 ` Andi Kleen
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