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AIX 5L Practical Performance Tools and Tuning Guide by IBM Redbooks

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1.2. Introduction to the performance tuning process

Performance tuning is primarily a matter of resource management and correct system parameters setting. Tuning the workload and the system for efficient resource use consists of the following steps:

  • Identifying the workloads on the system
  • Setting objectives:
    - Determining how the results will be measured
    - Quantifying and prioritizing the objectives
  • Identifying the critical resources that limit the system’s performance
  • Minimizing the workload’s critical-resource requirements:
    - Using the most appropriate resource, if there is a choice
    - Reducing the critical-resource requirements of individual programs or system functions
    - Structuring for parallel resource use
  • Modifying the allocation of resources ...

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