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Database Essentials
Administrative Planning : Memory usage : Optimizing memory usage

Optimizing memory usage

Optimizing memory usage is taking advantage of the memory that you have. The general idea is to share memory where you can, use memory efficiently where possible, increase memory on the broker side first, and then increase client memory usage. In most cases, systems benefit from additional memory, but sometimes it is not possible to purchase additional memory. This section focuses on the pros and cons of user and broker memory and how to best use the available memory.
* Buffer hits
* Increasing memory
* Decreasing memory
* Direct IO
* Private buffers (-Bp)
* Alternate Buffer Pool