Java Performance on POWER7

Best Practice

Out of the box AIX is a robust, solid and scalable operating system. However, some changes to the default settings may be necessary in order for customers to realize the best possible performance for their applications based on the applications’ specific characteristics and needs.

This document describes performance considerations, tuning options, existing tools, and diagnostic options that can be used to guide tuning decisions to maximize performance for a given application or workload.

The following performance considerations will be discussed: 32-bit versus 64-bit Java, memory and various page sizes, application scaling, affinity, consolidation, and Java Garbage Collection tuning.

Data has been collected to illustrate the benefits of the following scenarios: 32-bit and 64-bit Java, various page sizes, affinity, and scaling along with existing tools that can be used to guide tuning decisions.

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Advantages

Companies embracing Smarter Computing are implementing IT infrastructure based on the IBM Power Systems platform that is designed for data, tuned to the task and managed with cloud technologies. With Power Systems, businesses can outpace their competitors by delivering services faster, differentiate their offerings by delivering higher quality services, and turn operational cost into investment opportunity by delivering services with superior economics.

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Hardware

Power Systems hardware provides the foundation for designing workload optimized systems in conjunction with software and expert domain knowledge. Power servers and blades are modular and scalable and designed from the chip through the software stack to help deliver new levels of business performance.

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Operating systems

Power servers deliver flexibility and choice of operating systems to enable your business to select the best applications for your business needs. Whether running 1, 2, or all 3 - coupled with PowerVM, they maximize the benefit of Power Systems in your business.

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System software

IBM's integrated approach to developing Systems and Systems Software stacks together delivers maximum utilization, availability, and flexibility helping you deliver new advantages in your business.

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Solutions

IBM and IBM Business Partner solutions exploit key benefits in Power Systems that help you deliver new capabilities and new competitive advantages to your business.

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Over the last five years thousands of clients have migrated to POWER. Learn how Power Systems has helped them improve their business performance, reduce risk, and establish a more secure future.

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