My take on it is that the software will work well in single or dual processor
modes, but after that one would be better off LPARing the system and running
multiple instances as opposed to trying to get the software to run in, let's
say, quad processor mode.

>
> Richard B Baird wrote:
>
> >Jim,
> >
> >Thanks for the post.  Would anyone like to discuss the meaning of the
> >following paragraph of the article?  Why would this be true?  are they
> >saying that a 12 way wouldn't be a significant increase in power when
> >running websphere?   what are the "major software issues" that would bog
> >them down?
> >
> >Rick
> >
> >The issue of maxing out on capacity was faced early on. Passer said
> >stress tests were performed at the IBM iSeries headquarters, in
> >Rochester, Minnesota. From that, it was determined that adding a
> >second processor would be "an easy fix." The next round of increasing
> >capacity is more complicated. "After two CPUs in the iSeries," Passer
> >explained, "the application server has too much overhead and doesn't
> >really offer a big advantage over multiple application server
> >instances. In all cases, it means more CPUs, but there are major
> >software issues one gets bogged down with."
> >


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