Subject: Re: AHA-2940 UW SCSI adapter problems?
To: Michael Parson <>
From: Steven M. Bellovin <>
List: port-i386
Date: 07/19/2005 13:01:41
In message <>, Michael Parson writes:

> Newer IDE (ATA) is acting more and more like this.
>Once upon a time, disk I/O with IDE disks was CPU intensive.

Especially before ATA DMA.  (Aside: a number of years ago, I was 
reading a PC magazine that explained that disks no longer needed DMA, 
because the CPU was finally fast enough to keep up....)

		--Steven M. Bellovin,