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Bottleneck Analysis Conceptual Overview

Bottleneck Analysis Conceptual Overview

Introduction

Bottleneck analysis is the type of statistical analysis used by the EPILOG collector. The collector is the part of EPILOG that gathers data about where and how long a workload spends time.

Execution states

The various states in which a thread may spend time are called execution states. These states are:

Using CPU Database I/O waits MVS waits IMS internal waits

You can use bottleneck analysis to statistically estimate the relative impact of each wait reason on performance for a particular PSB group.

Introduction

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