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From: "Daniel O'Connor" <doconnor@gsoft.com.au>
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Date: Mon, 25 Jul 2005 19:44:57 +0930
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Cc: cvs-src@freebsd.org, src-committers@freebsd.org,
	Pawel Jakub Dawidek <pjd@freebsd.org>
Subject: Re: cvs commit: src/sys/geom/zero g_zero.c
	src/sys/modules/geom/geom_zero Makefile
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On Monday 25 July 2005 19:33, Pawel Jakub Dawidek wrote:
>   Add a very simple and small GEOM class - ZERO.
>   It creates very huge provider (41PB) /dev/gzero.
>   On BIO_READ request it zero-fills bio_data and on BIO_WRITE it does
> nothing. You can also set kern.geom.zero.clear sysctl to 0 to do nothing
> even for BIO_READ.
>
>   I'm using it for performance testing where it is very helpful.

How long does a newfs take on that?

;)

=2D-=20
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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