Date: Mon, 23 Aug 1999 16:32:16 +1000 From: Stephen McKay <syssgm@detir.qld.gov.au> To: Sheldon Hearn <sheldonh@uunet.co.za> Cc: freebsd-stable@freebsd.org, obrien@FreeBSD.ORG, mi@aldan.algebra.com, syssgm@detir.qld.gov.au Subject: Re: installworld : problem 1 (softupdates) Message-ID: <199908230632.QAA07992@nymph.detir.qld.gov.au> In-Reply-To: <43184.935385968@axl.noc.iafrica.com> from Sheldon Hearn at "Mon, 23 Aug 1999 07:26:08 %2B0200" References: <43184.935385968@axl.noc.iafrica.com>
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On Monday, 23rd August 1999, Sheldon Hearn wrote: >On Fri, 20 Aug 1999 14:54:41 MST, "David O'Brien" wrote: > >> Softupdates doesn't buy you anything on reads -- just writes. So unless >> you have it turned on for / because /tmp is on /, you aren't getting >> anything out of softupdates than frustration. > >Does softupdates score you something over MFS for /tmp ? Possibly. Because MFS pretends to be a real disk you often have 2 copies of any block in memory, one for the MFS "disk", and one for the "in core" copy. You wouldn't have that problem with softupdates. But, softupdates uses memory to keep track of the before and after versions of things, so it's hard to tell if you would win. Try it. :-) By the way, I use MFS for /tmp and don't use softupdates for root. Stephen. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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