Re: Generic PCI IDE bus-mastering DMA support
Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 20 Sep 1997 00:19:08 +0100 (BST)
> IDE drives using DMA have nearly all of the same performance advantages
> as SCSI, except perhaps that you have to manually enable some of them
> using hdparm.
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.
Alan