Subject: Re: ATAPI CD performance (update)
To: Laine Stump <>
From: Federico Lupi <>
List: port-i386
Date: 10/06/1999 00:28:34
On Tue, Oct 05, 1999 at 05:41:25PM -0400, Laine Stump wrote:
> At 11:32 PM 10/5/99 +0200, Federico Lupi wrote:
> >I think there is a performace problem and the hardware
> >is not to blame.  I am probably completely wrong but I
> >have the impression that there is a performance
> >penalty when an ATAPI CD-ROM is a slave to a hard disk.
> >cd1, which is secondary master, works much better.
> Have you connected your "slow" CD as secondary master to try out this
> theory? Likewise, connecting the "fast" CD-R that is currently secondary
> master as slave to the primary channel may provide a useful data point. It
> doesn't solve the problem, but at least it gives the "Gods of ATAPI" more
> data to work with ;-)

Good idea.  I swapped the two drives and ... nothing changed. I mean,
the slow drive was still slow on the secondary master and the fast
drive was still fast on the primary slave.  This means that

1) I was wrong (as I said)

2) NetBSD doesn't like the Asus 40x ATAPI CD?

Any suggestion is greatly appreciated.

Federico Lupi