Subject: Re: Dhrystone on MVII running 1.3.2
To: None <port-vax@netbsd.org>
From: Allison J Parent <allisonp@world.std.com>
List: port-vax
Date: 08/25/1998 14:39:03
Putting the family car up against formula lola.
< > > > 1200.1 Dhrystones/second
< > > >
< > > > Is this good or bad ?
Terrible even for MVII!
< > Pentium MMX @ 166 MHz: 262000 Dhrystones/s.
If a vax could be clocked at 166mhz it would do so well, then ofcourse it
would be a 7000 series instead of a MVII.
The equivilent would be a 386dx/40 without cache for a more direct
comparison.
The bigger difference is load each to 80% of capacity and run the test
the picture is then very differnet.
< Well I guess that answers that question. There must be a better
< metrick for comparing performance. I seen a vaxcluster doing things
< 5 years ago that even now is just becoming possible on todays stuff.
Vaxen tend to slow down more gracefully than intel.
< To Allison, The bus that drives an RA-81, how fast can you push this?
I know they are fast but I don't know the details. I think in excess of
14m bytes/sec, could be higher. Also depends if they are CI connected or
Massbus and all that.
Allison