[Info-vax] Performance benchmarks, was: Re: VMS Software Inc. OpenVMS 8.4-1H1 Boots on i4 System

[Simon Clubley]

On 2015-03-19, David Froble <davef at tsoft-inc.com> wrote:
> Jan-Erik Soderholm wrote:
>
>> Hm, I have a newer version that at startup says:
>> "INFO: Preventing endless loop (10$) on fast CPUs".
>> 
>> But your vesion above *does* work on my 1 GHz DS25 (which
>> shuld be a "fast CPU") but gives a very diffrent value
>> then the newer one I have:
>> 
>
> Well, not my version.  Don't know who wrote it, just something I picked 
> up years ago.  Person who wrote it apparently didn't put his name in the 
> thing.
>
> It's never been claimed to be accurate, but as you note, it might show 
> some comparisons, which is what Simon asked for.
>
> I ran both on my VAXstation 4000 Model 90A.
>
> $ @calcvups
> Approximate System VUPs Rating :  26.4
> $ @calculate_vups
>
>   Approximate System VUPs Rating : 109.0 ( min: 109.0 max: 109.0 )
>

I've now run both of these on Eisner and the FreeAXP setup (which
in the free version is just doing pure emulation and has no JIT
support). The HP box is an old box from around a decade ago which
explains the poor VUPS numbers. However, while compute intensive
operations (such as calculating the initial SSH keys during UCX
configuration) took a long time, performance for normal operations,
such as editing files with EVE, was very reasonable indeed.

FreeAXP:

$ @df_calculate_vups
Approximate System VUPs Rating :  14.2
$ @jes_calculate_vups
 
 Approximate System VUPs Rating : 58.0 ( min: 58.0 max: 58.0 )
$

FreeAXP is emulating a AlphaServer 400 4/166.

Eisner (I ran twice to make sure the numbers were accurate):

$ @df_calculate_vups    
Approximate System VUPs Rating :  228.0
$ @df_calculate_vups
Approximate System VUPs Rating :  227.8
$ @jes_calculate_vups
 
 Approximate System VUPs Rating : 934.2 ( min: 930.0 max: 936.0 )
$ @jes_calculate_vups
 
 Approximate System VUPs Rating : 934.5 ( min: 930.0 max: 939.0 )
$

Eisner is an AlphaServer DS20 500 MHz.

Summary after a few hours of using FreeAXP:

For normal interactive operations which are not compute or otherwise
resource intensive (you are limited to 128 Mbytes system memory in
free mode), FreeAXP emulation seems to have a reasonably good
responsive performance, even on the old HP box I am using.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
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