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Subject: Re: High Mem Options
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Reed, Timothy A" <timothy.a.reed@lmco.com>
Cc: Linux "Kernel ML (E-mail)" <linux-kernel@vger.kernel.org>
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On Wed, 2003-03-05 at 11:28, Reed, Timothy A wrote:
> Hello all,
> 	Yet another quick question...is there any down side to using the
> 64GB option over the 4GB option if the machine only has 2GB of RAM onboard??
> I would think this would be a performance issue?  Does the kernel only use
> the translation table if it has to access any memory location over 4GB?

The 64Gb mode has to use different page table formats, so there is a hit
always

-- 
Alan Cox <alan@lxorguk.ukuu.org.uk>
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