Re: Generic PCI IDE bus-mastering DMA support

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sun, 21 Sep 1997 21:58:18 +0100 (BST)


> > Parp. Benchmarking I've done says they are at best 65% of the speed of
> > a good SCSI drive. Once they have proper command queueing then the reasons
> > for most people using SCSI will vanish - but not yet.
> In this scenario, IDE technology just reinvents the SCSI technology.
> That's just time lost in my opinion, and such imaginary IDE drives
> would be as sophisticated as SCSI ones and so should not be cheaper.
> History is sometimes stupid, but it is reality.

It becomes cheaper because it uses a commodity interface. Most modern PC
technology is about using existing commodity items in slightly newer ways
to be almost as good as the high end features.

Alan