Briefly describe the three broad categories of performance evaluation techniques. Provide a positive and a negative characteristic for each.
Fill in the ??? in the above table.
Given the following response times from a database
transaction server (in milliseconds):
- What index of central tendency would you use to describe the data? Briefly explain why.
- What index of dispersion would you use to describe the data? Briefly explain why.
Given the performance of system A and system B under two different workloads:
System Workload 1 Workload 2 ---------------------------------- A 10 30 B 20 20Use a ratio game to show that system B is better.
What is the main hypothesis in LHPT95? Briefly describe the methodology they use to test their hypothesis.
What is at least one problem with instruction mixes as a computer workload? What is at least one problem with a kernel as a computer workload? What is at least one problem with an application as a computer workload?
What are the primary differences between hardware and software monitors?
The CCC is trying to characterize the workload on their across-campus Web machines. Several student projects have produced the following workload components (CPU in ms, disk in requests):
Program Name Function CPU Disk Emacs Editor 10 0 Pine Email 20 100 Netscape Browser 10 200 Savage Game 70 200 Gcc Compiler 50 500 Gnuplot Graphing 30 100 Povray Rendering 90 100
- What is the first step you would take in clustering the data for building a workload? Do it.
What is the second step you would take in clustering the data? Do it, justifying your answer.
Of the audio degradations induced in WS00, why are some of them deemed equivalent?
Give at least 5 problems with the above graph.
Describe the HINT algorithm (from GS95). Refer to the above graph in your answer.
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