From owner-freebsd-arch  Wed Mar 13 13:31:26 2002
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Date: Wed, 13 Mar 2002 22:31:13 +0100
From: Wilko Bulte <wkb@freebie.xs4all.nl>
To: Andrew Gallatin <gallatin@cs.duke.edu>
Cc: Dag-Erling Smorgrav <des@ofug.org>, arch@FreeBSD.ORG
Subject: Re: dumpsys() rewrite
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References: <xzp3cz5v7rp.fsf@flood.ping.uio.no> <20020313093805.GA29679@genius.tao.org.uk> <xzp7kogbwmy.fsf@flood.ping.uio.no> <p05101560b8b522a7f8a1@[128.113.24.47]> <xzpbsds8o8n.fsf@flood.ping.uio.no> <15503.50253.527438.195997@grasshopper.cs.duke.edu>
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In-Reply-To: <15503.50253.527438.195997@grasshopper.cs.duke.edu>; from gallatin@cs.duke.edu on Wed, Mar 13, 2002 at 04:27:41PM -0500
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On Wed, Mar 13, 2002 at 04:27:41PM -0500, Andrew Gallatin wrote:
> 
> Dag-Erling Smorgrav writes:
>  > Garance A Drosihn <drosih@rpi.edu> writes:
>  > > Would it make any sense to compress it in the 'gzip' sense of
>  > > the word (or some simpler algorithm)?
>  > 
>  > Not really.  The compression rate is not sufficiently predictable, and
>  > dumping would be s...l...o...w...
>  > 
> 
> You might not want to discount it out of hand.  Other OSes (at least
> Tru64, possibly others) do compressed dumps effectively.

T64 needs to (badly). Given that Wildfires with 256 GB core find their
way to customers.. ;-) Even for more modest boxes with 32GB core a
compressed dump becomes interesting.

Wilko
-- 
|   / o / /_  _   		wilko@FreeBSD.org
|/|/ / / /(  (_)  Bulte		Arnhem, the Netherlands

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