Dean Kent wrote:
I am comparing the pace of improvement in x86 with the mainframe. The IT Jungle article says that installed mainframe MIPS has increased 4 fold over 7 years. I showed that in the same time period, x86 performance has increased over 8 fold. We still aren't getting an apples to apples comparison because it doesn't tell us what the highest performing mainframe processor was in 2000 vs today.
Installed MIPS has nothing to do with performance. I'm not sure why it's been mentioned here.
In any case, raw MIPS improvements are easily researched. For example, the charts at http://www.tech-news.com/publib/ show the largest zSeries processor in 2000, made available in 1Q00, was a 2064-116, capable of delivering 2694 MIPS; the largest System z processor today, made available in 4Q05, was a 2094-754, capable of delivering 17,802 MIPS. That's a 6.6:1 improvement in less than five years. (Not bad!)
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