Doh, sorry.. sed s/2/3/g :)
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Corin
> Hartland-Swann
> Sent: April 18, 2001 12:17 AM
> To: Jason A. Lixfeld
> Cc: [EMAIL PROTECTED]
> Subject: RE: Looking for the best solution
>
>
>
> Jason,
>
> On Tue, 17 Apr 2001, Jason A. Lixfeld wrote:
> > > Everyone should be intimate with hdparm :) It's the only
> reason everyone
> > > thinks UDMA drives suck (Linux picks *REALLY* sucky options for UDMA
> > > drives). I *ALWAYS* use this setting and haven't ever had a problem.
> > >
> > > It usually speeds SDTR by 2-3x and decreases CPU utilisation a lot as
> > > well.
> >
> > Well, the only thing I have set is -c. I actually found that
> it was better
> > with -c 2, but I'll try -c 1 as it is tested. The other
> settings with the
> > exception of -m16 were already set by default so I didn't have to touch
> > them. Thx for that pointer tho! :)
>
> >From hdparm(8):
>
> -c Query/enable (E)IDE 32-bit I/O support. A numeric
> parameter can be used to enable/disable 32-bit I/O
> support: Currently supported values include 0 to
> disable 32-bit I/O support, 1 to enable 32-bit data
> transfers, and 3 to enable 32-bit data transfers
> with a special sync sequence required by many
> chipsets. The value 3 works with nearly all 32-bit
> IDE chipsets, but incurs slightly more overhead.
> Note that "32-bit" refers to data transfers across
> a PCI or VLB bus to the interface card only; all
> (E)IDE drives still have only a 16-bit connection
> over the ribbon cable from the interface card.
>
> So, I don't know what "-c 2" would do, but I think "-c 1" is the right
> solution.
>
> Regards,
>
> Corin
>
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