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Date:      Thu, 01 Feb 1996 18:28:21 +0100
From:      Poul-Henning Kamp <phk@critter.tfs.com>
To:        "Andrew V. Stesin" <stesin@elvisti.kiev.ua>
Cc:        toor@dyson.iquest.net (John S. Dyson), hackers@freebsd.org
Subject:   Re: Good news -- pipe stuff 
Message-ID:  <9819.823195701@critter.tfs.com>
In-Reply-To: Your message of "Thu, 01 Feb 1996 17:57:28 %2B0200." <199602011557.RAA17767@office.elvisti.kiev.ua> 

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> Hello John,
> 
> # Rules of thumb like 2x or 3x kind-of don't really model what is happening.
> # A better model would be "sum up the size of all of the programs that you
> # are running (including malloc areas, etc)".  If that is bigger 2X the
> # amount of memory that you are using, then that is how much swap space you
> # need, otherwise 2X memory is a good bet. 
> 
> 	Who can say apriory what programs and how many of them
> 	you'll be running tomorrow? Today your'e Ok, tomorrow
> 	you suddenly get some 15 sendmails running on the queue,
> 	and several uuxqts, and so on, so on.
> 

Well, be generous then :-)

I have always used my own private fudge-factor:

	1) No less than 32M, ever.
	2) 5-10 % of the disk capacity.

My laptop has 48M swap for instance.

--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@ref.tfs.com       TRW Financial Systems, Inc.
Future will arrive by its own means, progress not so.



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