Date: Fri, 04 May 2007 00:28:27 -0600 From: Scott Long <scottl@samsco.org> To: Ian Smith <smithi@nimnet.asn.au> Cc: stable@freebsd.org, "Sean C. Farley" <sean-freebsd@farley.org>, Ulrich Spoerlein <uspoerlein@gmail.com> Subject: Re: acd and iostat [was Re: FreeBSD vs Region Code DVDs] Message-ID: <463AD28B.9070709@samsco.org> In-Reply-To: <Pine.BSF.3.96.1070504153915.16876B-100000@gaia.nimnet.asn.au> References: <Pine.BSF.3.96.1070504153915.16876B-100000@gaia.nimnet.asn.au>
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Ian Smith wrote:
> On Thu, 3 May 2007, Scott Long wrote:
>
> > Ulrich Spoerlein wrote:
> [..]
> > > PS: why is iostat(1) not working for acd(4) devices?
> >
> > Because acd doesn't make use of the standard kernel facilities that make
> > iostat work. It's a deliberate choice by the driver author.
>
> Same for systat -vm of course. I guess this was a regression, as acdX
> used to show up fine in 4.X in {sys,io}stat, whether or not also showing
> cdX (with atapicam). I often used to watch it while testing burned CDs.
>
> Was that because of an API change to said kernel facilities, perhaps?
>
> Cheers, Ian
>
No, the devstat kernel API hasn't changed in since it was introduced
nearly 10 years ago.
Scott
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