Recalculating

When you do a full recalculation of a database with Intelligent Calculation turned on, Essbase checks each block to see whether it is marked as clean or dirty. See Intelligent Calculation and Data Block Status.

Checking data blocks has a 5% to 10% performance overhead, which is insignificant when compared to the performance gained by enabling Intelligent Calculation.

If, however, you recalculate a database in which more than approximately 80% of the values have changed, the overhead of Intelligent Calculation may outweigh the benefits. In this case, disable Intelligent Calculation.