OBI already has a caching mechanism in presentation layer and BI server layer. How is the new in-memory caching better for performance?

Question:

OBI already has a caching mechanism in presentation layer and BI server layer. How is the new in-memory caching better for performance?

Answer:

OBI Caching only speeds up what has been seen before. An In-memory data structure generated by the summary advisor is optimized to provide maximum value by accounting for the expected broad usage and drilldowns. It is possible to adapt the in-memory data to seasonality by running the summary advisor on specific workloads. Moreover, the in-memory data is created in an analytic database providing maximum performance for the large amount of memory available.

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