HP-UX 11i Tuning and Performance

2.7. Performance Problem Resolution

Each of the preceding activities is proactive in that an attempt is made to predict and prevent performance problems. Even if the system is currently performing satisfactorily, performance management is required so that changes in performance can be readily and speedily detected. Unfortunately, no matter how much planning is accomplished, performance problem resolution is still needed when problems arise. Performance problems manifest themselves when users complain of poor response time or when the user department complains that the workload cannot be processed in the appropriate time. Problems often arise at very inopportune times and therefore create emotional, reactive, and time-constrained environments. ...