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What is Performance Tuning?
Performance Overview 1-3
■ Wait Time
■ Critical Resources
■ Effects of Excessive Demand
■ Adjustments to Relieve Problems
Response Time
Because response time equals service time plus wait time, you can increase
performance in this area by:
■ Reducing wait time
■ Reducing service time
Figure 1–1 illustrates ten independent tasks competing for a single resource.
Figure 1–1 Sequential processing of independent tasks
In this example, only task 1 runs without waiting. Task 2 must wait until task 1 has
completed; task 3 must wait until tasks 1 and 2 have completed, and so on.
(Although the figure shows the independent tasks as the same size, the size of the
tasks will vary.)