From owner-freebsd-arch  Wed Mar 13  1:38:58 2002
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Date: Wed, 13 Mar 2002 09:38:05 +0000
From: Josef Karthauser <joe@tao.org.uk>
To: Dag-Erling Smorgrav <des@ofug.org>
Cc: arch@freebsd.org, peter@freebsd.org, jake@freebsd.org
Subject: Re: dumpsys() rewrite
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On Tue, Mar 12, 2002 at 09:41:14PM +0100, Dag-Erling Smorgrav wrote:
>=20
> Drawing on input from Peter, I suggest the following:
>=20
> a) drivers will implement three functions instead of one:
>=20
>     - dump_init: readies the device for dumping the specified number
>       of pages at the specified offset (dumplo).
>=20
>     - dump_write: writes the specified number of pages from the
>       specified address to the device

It would be fantastic to be able to compress the memory image as it is
dumped to disk.  That would speed it up a bit in most cases.  If each
dump_write reads memory directly rather than going through a common
function this is never going to be easy to do.

Joe

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