Solution : https://service.sap.com/sap/support/notes/783750 (SAP Service marketplace login required)
Key words :
infocube\manage\performance--> db statistics --> refresh statistics, relevant bw support package, terms update statistics reason, smaller bw dimension tables, small dimension tables, schedule update statistics, stored procedure sap_updtstat, update statistics, create statistics, stored procedure
Related Notes :
| 542468 | Activate manual statistic generation on infocubes in BW |