🚀 go-pugleaf

In article <344@swanee.OZ>, gustav@swanee.OZ (Gustav) writes:
> In article <2363@ames.arpa>, jaw@ames.arpa (James A. Woods) writes:
> > During Phoenix USENIX, at the Unisoft booth, on the Mac II,
> > a "time cat /usr/dict/words > /dev/null" took about four seconds
> > of clock time. 
> Well, let me compare this to our VAX 11/750 running 4.2BSD. The disk
> we use is RA81:
> 
>    Script started on Wed Jul 22 22:24:23 1987
>    103 $ time cat /usr/dict/words > /dev/null
>    
>    real	0m31.53s
>    user	0m4.61s
>    sys	0m2.26s
>    104 $ ^D
>    
>    script done on Wed Jul 22 22:25:01 1987
> 
> The system at the moment has 5 users and the load is 4.2. 
> Mac II wins a long way!

Please multiply Mac II time by 5 then add the operating system overhead time
necessary for time slicing to simulate the time necessary for
five users...

I find your comparisons of multi-user operating systems with non-multi
user systems ill consieved.  If your going to compare one machine with
another, it should be done under similar conditions.  There were five
users logged on and God knows how many system jobs being performed.

The question remains:  Why is AUX disk I/O ONLY 50KB/second?






/Carl
...mcnc!unccvax!cbenda