On Fri, 15 Jan 1999, George Woltman wrote:
> At 12:24 AM 1/13/99 -0800, Leu Enterprises Unlimited wrote:
> >On one CPU, after two days worth of burn-in, the time required to
> >complete 100 iterations on the stock number went down, as I would expect.
> >
> >On a second CPU, the time actually *increased*. From 1 day, 18 hours,
> >and 55 minutes, to 1d 19h 13m!
>
> I'd be surprised if burning in had an effect on iteration times.
> More likely, 100 iterations is not enough to get a truly accurate
> timing.
I'd be extremely surprised, since the speed of the computations is
strongly linked to the processor clock, so either you're measuring clock
drift (and yes, that is temperature linked) or due to your small samples
the variance mentioned which is about 1% is actually noice.
--
Henrik Olsen, Dawn Solutions I/S
URL=http://www.iaeste.dk/~henrik/
Get the rest there.
