From owner-freebsd-hackers  Tue Jul 13 14:29:17 1999
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Date: Tue, 13 Jul 1999 14:27:54 -0700 (PDT)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <199907132127.OAA80947@apollo.backplane.com>
To: Noriyuki Soda <soda@sra.co.jp>
Cc: Jason Thorpe <thorpej@nas.nasa.gov>,
	"Brian F. Feldman" <green@FreeBSD.ORG>, bright@rush.net,
	dcs@newsguy.com, freebsd-hackers@FreeBSD.ORG, jon@oaktree.co.uk,
	tech-userlevel@netbsd.org
Subject: Re: Replacement for grep(1) (part 2) 
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:>     Secondly, for such a server to fail to run is just as bad as if
:>     the system were to run out of swap.
:
:>     IRIX has a swap reservation flag too, a left-over from the SysV days.
:>     It is a totally useless flag.
:
:That's wrong.
:On such systems, critical server has a chance to save it's data to
:filesystem.
:On 4.4BSD derived systems, it cannot be guaranteed.
:--
:soda

    You are assuming that the situation actually occurs.  In real life,
    it will not occur unless the critical server is running away with
    memory.

    I have never, ever run one of BEST's servers out of swap.  It has never
    been an issue.

    And, I can only repeat, again, that long before a reasonably configured
    FreeBSD system runs out of swap it would become unusable from the I/O 
    overload.

    And you also haven't bothered to address my other point:  In order to
    configure a system that guarentees backing store, you need to configure
    that system with 8x or more swap then you would a normal system.  If
    you think there was a chance of a normal system running out of swap,
    what do you think would happen if you configured a normal system with
    8x swap?

    					-Matt
					Matthew Dillon 
					<dillon@backplane.com>



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