Date: Mon, 01 May 2006 14:32:51 -0700 From: Maxim Sobolev <sobomax@FreeBSD.org> To: Peter Wemm <peter@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 pmap.c Message-ID: <44567E83.7010705@FreeBSD.org> In-Reply-To: <200605012122.k41LMcxB058613@repoman.freebsd.org> References: <200605012122.k41LMcxB058613@repoman.freebsd.org>
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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 > >
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