CHAPTER 2Your Performance Toolkit

In this chapter, we’ll look at all of the tools I use on a recurring basis. These are the tools I use every day in order to test ideas, debug processes, tune algorithms, and so on. It is a fairly short list and incorporates only one graphical user interface (GUI) tool. All of the other tools are predominantly character mode, text-based tools.

In today’s world, nearly everyone is using a GUI of some sort, be it the Macintosh, Linux, some Unix variant, or one of the many different Microsoft Windows versions. So, why is a tool like SQL*Plus, a command-line interface to the database, still relevant? For the same reason telnet (or more likely ssh, the secure shell) is useful. In a mobile environment, where you move ...

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