Re: Odd/Even packed numbers.

["Leif Svalgaard" <leif@xxxxxxxx>]

From: Leif Svalgaard <leif@leif.org>
To: <midrange-l@midrange.com>
Sent: Thursday, November 28, 2002 8:18 PM
Subject: Re: Odd/Even packed numbers.


> From: Booth Martin <Booth@MartinVT.com>
> > Leif, I believe your comment that signed fields take much longer, but 10
> > times longer?  oh gosh...  That is huge.  Did you save the metrics?
>
> no need to. It's a ten line program (which I still have). For packed
> it adds 100,000,000 times. that takes 30 seconds. For zoned it
> also takes 30 seconds, but it adds only 10,000,000 times
> (I got tired of waiting!) hence a factor of ten. I can rerun the
> program anytime to see the result again.
>

STOP THE PRESSES !
I ran the two test on two different machines. When I ran the
PKD version on the same machine as the ZND version it took
77 seconds for 100,000,000 additions for PKD versus
30 seconds for 10,000,000 additions for ZND, so it is NOT
a factor of ten, but "only" a factor of 30/7.7 = 4