Click to seriously expand picture.
Links to other response time tools and papers, click here.
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This MS-Excel tool makes it very easy to both numerically and graphically compare three different performance situations in a response time focused manner. Each of the three cases allows input for the arrival rate (workload), service time, and number of CPU cores or effective IO devices. The numerical output for each case is the calculated utilization, queue time, and response time. All three response time curves are color coded and combined into a single graph. Furthermore, the workload situation for each case is highlighted by a large data plot circle. This tool makes it very easy to show the current situation and two possible performance enhancing solutions.
The basis of this graphical tool are discussed in Shallahamer's book, Oracle Performance Firefighting, in his Oracle Performance Firefighting training course, and used in a deeper fashion in his Advanced Oracle Performance Analysis course.
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