December 2011
Intermediate to advanced
426 pages
13h 30m
English
book
Power Systems Enterprise Servers with PowerVM Virtualization and RAS
by Dino Quintero, JinHoon Baek, Guillermo Diez, Hassan Elsetohy, Debra Francis, Bing He, Rajesh Jeyapaul, Anil Kalavakolanu, Tejaswini Kaujalgi, David Kgabo, Ricardo Puig, Vani Ramagiri
Content preview from Power Systems Enterprise Servers with PowerVM Virtualization and RAS
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254 Power Systems Enterprise Servers with PowerVM Virtualization and RAS
7.2.4 MaxCore and TurboCore modes
TurboCore provides a higher frequency core and more cache per core, which are normally
extremely good things for performance. Also, to make use of these positive attributes, the
system’s active core placement needs to change from having eight cores per chip to having
four cores per chip. So, using TurboCore can also mean a change in the number of chips and
perhaps in the number of drawers. For a given partition, this in turn can mean an increase in
the probability of longer access latencies to memory and cache. But partition placement and
workload type can influence these probabilities. As a result, the positive benefits of
TurboCore’ ...
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