From owner-freebsd-hackers  Thu Jul 29 11:56: 0 1999
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To: Matthew Dillon <dillon@apollo.backplane.com>
Cc: "Daniel C. Sobral" <dcs@newsguy.com>, hackers@FreeBSD.ORG
Subject: Re: MADV_SEQUENTIAL and GNU Grep 
Reply-To: Jason Thorpe <thorpej@nas.nasa.gov>
From: Jason Thorpe <thorpej@nas.nasa.gov>
Date: Thu, 29 Jul 1999 10:41:20 -0700
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On Thu, 29 Jul 1999 10:21:52 -0700 (PDT) 
 Matthew Dillon <dillon@apollo.backplane.com> wrote:

 >     I'm testing it now along with the madvise(... MADV_DONTNEED) changes (to
 >     make them work on files in a reasonable way).

When I implemented MADV_DONTNEED and MADV_FREE in NetBSD (UVM):

	DONTNEED: deactivate pages

	FREE: don't clean dirty pages, free all pages in range

It was fairly straightforward in NetBSD.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>



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