1.4.2 Selecting a baseline
Before you use a PFM product to monitor system performance, you must select a baseline.
To do this, you select a performance value based on the performance measurement results that is expected to not cause any problems in system operations.
A PFM product uses the baseline value as a threshold when it monitors the system performance. Therefore, selecting the baseline is an important task in performance monitoring.
When you select a baseline, consider the following points:
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We recommend that you measure the system's peak state during a situation such as a heavy workload test of the operating environment.
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The threshold varies greatly depending on the system configuration. Therefore, after you have modified the system resources or the operating environment, we recommend that you select a new baseline.