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• Choice of Geode region type. Different regions have different per entry overhead. This overhead is documented (see below), and is also included in the sizing spreadsheet.
• Choice of the serialization mechanism. Geode offers multiple serialization options, as well as the ability to have values stored serialized. As mentioned above, Geode PDX serialization is the generally recommended serialization mechanism due to its space and performance benefits.
• Choice of Keys. Smaller and simpler keys are more efficient in terms of both space and performance.
• Use of indexes. Indexing incurs a per entry overhead, as documented in the below mentioned section of the User’s Guide.

The section Memory Requirements for Cached Data of the Geode User’s Guide provides more detailed information and guidelines on this topic.

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