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Date:      Sun, 28 Jun 2009 21:03:44 -0400
From:      Nathanael Hoyle <nhoyle@hoyletech.com>
To:        freebsd-hackers@freebsd.org
Subject:   Re: large pages (amd64)
Message-ID:  <4A4812F0.2080208@hoyletech.com>
In-Reply-To: <20090629003522.GA18543@britannica.bec.de>
References:  <alpine.BSF.2.00.0906281933580.1809@wojtek.tensor.gdynia.pl>	<4A480760.50705@hoyletech.com> <20090629003522.GA18543@britannica.bec.de>

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Joerg Sonnenberger wrote:
> On Sun, Jun 28, 2009 at 08:14:24PM -0400, Nathanael Hoyle wrote:
>   
>> Just to be clear, since you say i386 (I presume you mean architecture),  
>> I believe the Physical Address Extensions which allowed 2MB Page Size  
>> bit to be set was introduced with Pentium Pro. Processors prior to this  
>> were limited to standard 4KB pages.
>>     
>
> PSE != PAE != PSE36. Pentium Pro sounds about right though.
>
> Joerg
>   
Thanks for the clarification/correction. PSE does not depend on PAE, 
though both were introduced at roughly the same time (appears PSE was 
introduced silently in Pentium, officially in Pentium Pro). I definitely 
wasn't thinking of PSE36, which was the Pentium III.

-Nathanael



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