Performance tuning anti-patterns

To tune the performance of a system means to improve one or more of its measures of performance. The question is how, when, and where should it be done? This is an area of great underestimation and major misconception. In the subsections that follow, we'll give you some examples of common mistakes and problems. Try to avoid them, or help out by correcting them, whenever and wherever you can.

The one-off

For many not-so-developed or understaffed organizations, performance testing with some possible tuning is more or less a one-off, something done just before an application is shipped out to production.

By only performing the testing and tuning at this point, the amount of work, if done properly, is much higher and ...

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