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From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=)
To: Bruce Evans <bde@zeta.org.au>
References: <20070406025700.GB98545@garage.freebsd.pl>
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Date: Fri, 13 Apr 2007 13:24:20 +0200
In-Reply-To: <20070413164840.V31079@besplex.bde.org> (Bruce Evans's message of
	"Fri, 13 Apr 2007 17:34:56 +1000 (EST)")
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Cc: freebsd-fs@freebsd.org, Craig Boston <craig@xfoil.gank.org>,
	"Rick C. Petty" <rick-freebsd@kiwi-computer.com>,
	freebsd-current@freebsd.org
Subject: Re: ZFS committed to the FreeBSD base.
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Bruce Evans <bde@zeta.org.au> writes:
> Dag-Erling Sm=F8rgrav <des@des.no> writes:
> > Contrary to popular belief, atomic operations are *expensive*.
> Doesn't everyone who uses atomic operations knows that they are
> expensive? :)

Everyone who *uses* them, yes, but not everyone does.  I recall an
interesting conversation at Poul-Henning's Varnish presentation in
Milan where someone in the audience relentlessly insisted that
[something or other] really wasn't as big an issue as Poul-Henning
claimed, since atomic operations were so cheap.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no