Chapter 8: Measuring E-Business Transaction Response Times

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Overview

This chapter discusses methods and tools provided by IBM Tivoli Monitoring for Transaction Performance Version 5.2 to:

• Measure transaction and subtransaction response times in a real-time or simulated environment

• Perform detailed analysis of transaction performance data

• Identify root causes of performance problems

Real-time end-user experience measurement by using Quality of Service and J2EE will be introduced, and the use of subtransaction analysis and Back End Service Time from Quality of Service is demonstrated, along with the use of correlation of the information to identify the root cause of e-business transaction problems.

This chapter provides discussions of the following topics:

• Business and application considerations, general issues, and preparation for measurements.

• The e-business sample applications: Trade and Pet Store.

• Comparison study of choice of tools:

  • Synthetic Transaction Investigator

  • Generic Windows

  • J2EE

  • Quality of Service

• Real-time monitoring analysis using the Trade sample application in a WebSphere Application Server 5.0.1 environment using:

  • Synthetic Transaction Investigator

  • J2EE

  • Quality of Service

• Weblogic and Pet Store case study

For the discussions in this chapter, it is assumed that the TMTP Management Agent is installed on all the systems where the different monitoring components (STI, QoS, J2EE, and GenWin) are deployed. Please refer to 3.5, "TMTP implementation considerations" on page 79 for a discussion of the implementation of the TMTP Management Agent.

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