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Date: Thu, 17 Jan 2002 15:48:10 -0200 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: Yinlei Yu <yinlei_yu@hotmail.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Is there anyway to use 4M pages on x86 linux in user level?
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On Thu, 17 Jan 2002, Yinlei Yu wrote:

> I am working on a project that keep accessing lots of memory
> randomly(say 500MB-1.5GB) and we do have such amount of memory
> installed so there's almost no page faults while running the entire
> program. Since x86 architecutre has a 4M page feature, is it possible
> to make use of these big pages instead of 4K pages in my program (a
> user-level application) so I can expect much fewer TLB misses due to
> the reduced number of TLB entries?

This isn't currently implemented, still somewhere on the TODO list ;/

Rik
-- 
"Linux holds advantages over the single-vendor commercial OS"
    -- Microsoft's "Competing with Linux" document

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