IBM BPM, V8.0.1, All platforms > Tuning > Advanced tuning > IBM Business Monitor tuning
Enable KPI caching
The cost of calculating aggregate KPI values increases as completed process instances accumulate in the database. A KPI cache is available to reduce the number of these calculations.
You can configure the refresh interval by navigating to Applications > Monitor Models > version > Change runtime configuration > KPI > KPI cache refresh interval.
A value of zero (the default) disables the cache.