What is Performance Tuning?
Performance Overview 1-3
Wait Ti me
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.)