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Performance Optimization and Tuning Techniques for IBM Power Systems Processors Including IBM POWER8 by David Wendt, Suresh Warrier, Julian Wang, Bernard King Smith, Will Schmidt, Bill Schmidt, Mauricio Oliveira, Steve Munroe, Alex Mericas, Tulio Magno, Madhusudanan Kandasamy, Alon Shalev Housfater, Brian Hall, Peter Bergner

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Preface
This IBM® Redbooks® publication focuses on gathering the correct technical information, and laying out simple guidance for optimizing code performance on IBM POWER8® processor-based systems that run the IBM AIX®, IBM i, or Linux operating systems. There is straightforward performance optimization that can be performed with a minimum of effort and without extensive previous experience or in-depth knowledge.
The POWER8 processor contains many new and important performance features, such as support for eight hardware threads in each core and support for transactional memory. The POWER8 processor is a strict superset of the IBM POWER7+™ processor, and so all of the performance features of the POWER7+ processor, such as multiple page sizes, ...

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