🚀 go-pugleaf

In article <pLMYl5dhX7hK-pn2-Dskcf41hGmYZ@alex>,
Keith R. Williams <krw@ibm.net> wrote:
>On Mon, 8 Dec 1997 22:39:40, eric@godzilla.berkeley.edu (Eric van
>Bezooijen) wrote:
>
>> 
>> Hmm, I read that, and my interpretation of those benchmarks is that
>> IDE drives use twice as much of your CPU during a disk operation.  I'm
>> glad I have SCSI in my system!
>
>Hmm, read, measured, or "felt".  Is the difference between 4% and
>8% a major one? how is it measured?  Does it matter to the user? 
>I know there is a huge difference in resonsiveness in a system 
>with bus master drivers and one without.  But both have these 
>now.  I don't see a huge difference in CPU utilization between 
>busmastering IDE and SCSI.

Uh, the benchmarks listed the percentages as % utilization PER MEGABYTE
xferred.  Say one was 3 % per Mb, and the other 6 % per Mb, then if
I was xferring 5 Mb/sec, it would be 15 % vs. 30 %.  Am I understanding
the benchmark wrong here ?  I see a pretty big performance gap.

-Eric
--
Eric van Bezooijen     eric@activesw.com     http://www.activesw.com/~eric
"But the meaning of life is a mystery, that we don't understand so far.
 And the music of life is a rhapsody if you're happy the way that you are"
   -- "Freudiana"