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It appears to be stating that going to multiple processors within one server doesn't offer advantage over just installing multiple single processor servers. There is a cost in overhead for the OS functions which share workload. But, I don't know what the "major software issues" would be that would make running 12 single processor servers as attractive as running one 12 processor server. 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." > -- Chris Rehm javadisciple@earthlink.net Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God. 1 John 4:7
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