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PostgreSQL 9.0 High Performance by Gregory Smith

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Chapter 12. Monitoring and Trending

Performance of your database server is directly tied to how well the underlying operating system is working, and there the performance is driven by the hardware you're using. To fit all of these pieces together—hardware performance, operating system performance, and database performance—you need a good monitoring system. Once you're capturing all the right data, software that graphs that is vital to tracking general trends in your server's performance. This can help you predict when you're reaching the limits of your systems capacity, and see whether the changes made are effective improvements or not.

UNIX monitoring tools

The simple performance tools on a UNIX-derived system are straightforward to use, and it's ...

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