IBM 170 Servers Manual page 335

account features like detailed journaling, resource locking, single-threaded applications, time-limited
batch job windows, or poorly tuned environments.
The Estimator is a capacity sizing tool. Even though it does not represent actual transaction response
times, it does adhere to the policy of giving recommendations that abide by generally accepted utilization
thresholds. This means that the recommendation will likely have acceptable response times with the
solution being prior to the knee of the curve on the common throughput vs. response time graph.
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
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Copyright IBM Corp. 2008 Chapter 22 - Workload Estimator 335