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Chapter 7. Identifying Your Performance Problems

You have been assigned to improve the performance of your company's web service. The hardest thing is to get started. How should you tackle this task? And how do you sort out the insignificant issues and identify those that will make a difference once resolved?

In this chapter, we look at this problem from different angles. Only after you understand the problem should you start looking for solutions. Don't search for a solution before the problem has been precisely identified, or you'll end up wasting a lot of time concentrating on trivial issues. Instead, try to identify where you can make the biggest difference in performance.

Note that in this book, we use the term "web service" to mean the whole aggregate that provides the service: the machine, the network, and the software. Don't confuse this with web services such as SOAP and XML-RPC.

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