Chapter 9. Instant Tuning
Sometimes, you don't have time to understand the fine details: users and management are breathing down the back of your neck, and you absolutely must fix a problem immediately. Perhaps you're the backup for a coworker who went out of town the day before ten users storm your shared office and demand that performance improve; perhaps you're a contracted systems administrator who needs a quick checklist for things that might possibly be wrong with a system; perhaps you've read this book cover-to-cover and are looking for a concise reference so you can throw away that legal pad full of notes. In this chapter, we'll summarize procedures for approaching two common but not simple questions: where do I look in order to identify and solve common performance problems, and what tuning, in general, do I need to do on a fresh system in order to ensure performance is maximized? Before we get into this material, however, a word of caution.
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