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Date: Mon, 01 May 2006 14:32:51 -0700
From: Maxim Sobolev <sobomax@FreeBSD.org>
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To: Peter Wemm <peter@FreeBSD.org>
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/i386/i386 pmap.c
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Just curious what does it bring us in terms of performance/memory savings?

-Maxim

Peter Wemm wrote:
> peter       2006-05-01 21:22:38 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/i386/i386        pmap.c 
>   Log:
>   Using an idea from Stephan Uphoff, use the empty pte's that correspond
>   to the unused kva in the pv memory block to thread a freelist through.
>   This allows us to free pages that used to be used for pv entry chunks
>   since we can now track holes in the kva memory block.
>   
>   Idea from:  ups
>   
>   Revision  Changes    Path
>   1.555     +115 -50   src/sys/i386/i386/pmap.c
> 
>