Re: NetBSD speed curiosities

[Dave McGuire <mcguire%neurotica.com@localhost>]

On 04/16/2014 09:03 PM, Toby Thain wrote:
>>> I'm still puzzled by one thing that perhaps someone could explain. The
>>> Dhrystone benchmark from pkgsrc should be pretty consistent due to its
>>> simplicity. However, my 4000/30 (VLC) with NetBSD 6, which by many
>>> sources is supposed to be 5 VUPs or so, only reports 2109 runs per
>>> second, which is only about 1.2 times faster than the runs per second of
>>> an 11/780.
>>>
>>> A 4000/60, which is supposed to be about 12 VUPs, gives 16305 runs/sec,
>>> which is about 9.2 times faster than an 11/780.
> 
> Maybe it's me, but these ratios seem well within the fuzziness I'd
> expect given all the variables (including, as Dave sagely noted, cache).
> A VUP is an archetypically vague unit.

  Well yes and no...A 4000/VLC easily runs 3-4x faster than a
MicroVAX-II, side-by-side.  It's fuzzy, yes, but not I think THAT fuzzy.

             -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA