Re: why do we do it

On Mon, Aug 22, 2005 at 01:56:46AM +0200, Johnny Billquist wrote:
> On Sun, 21 Aug 2005, Sean Davis wrote:
> 
> > On Mon, Aug 22, 2005 at 01:29:04AM +0200, Johnny Billquist wrote:
> > > On Sun, 21 Aug 2005, Jochen Kunz wrote:
> > >
> > > > On Sun, 21 Aug 2005 02:32:35 +0200
> > > >
> > > > I leave it to your homework to calculate estimated build times based on
> > > > the MIPS numbers. ;-)
> > >
> > > I can also tell that on a VAX-8650, it takes a little over a week
> > > nowadays.
> > > In speed comparision, a VAX-8650 is about 6 VUPS (maybe a bit more), while
> > > the 11/750 is the same 0.65 VUPS. That would leave us somewhere around 11
> > > weeks. Now, an 11/750 can't have more than 14 megs of physical memory (or
> > > something like it), which means it will probably be even worse.
> >
> > Has anybody written anything to benchmark a machine in VUPS? I'd be
> > interested to know how many VUPS an Athlon gets, or an Opteron ;)
> 
> Doubt there would be a point to it, since you don't have the same
> instructions. VUPS is mostly meaningful to compare different VAXen, since
> that will tell you how fast the same code would execute on different
> machines. Binary code, that is.

Well, there is the concept of running the VAX simulator on those systems. 
And given how CPU performance had grown over time, it could make for some 
fast VAX systems. :-)

Take care,

Bill

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