linux-kernel - Re: How much kernel memory is in 64-bit OS ?

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Message-ID: <Pine.LNX.4.61.0609181033350.27566@yvahk01.tjqt.qr>
Date:	Mon, 18 Sep 2006 10:35:05 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Rik van Riel <riel@...hat.com>
cc:	yogeshwar sonawane <yogyas@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: How much kernel memory is in 64-bit OS ?

>
> It depends on the architecture.
>
> 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.
>
> Sure, people said that too when going from 16 bits to 32 bits,
> but that was only a factor 2^16 difference.  This time it's the
> square of the previous difference.

Not quite the square :)


Jan Engelhardt
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