Solution : https://service.sap.com/sap/support/notes/382541 (SAP Service marketplace login required)
Key words :
additional key words engineering change management, internal float table buffer_liste, expierience performance problems, prerequisites poor performance, mrp run solution, buffer module bu_effectivity_read, change number, buffer table, planning run, system selects
Related Notes :
| 402808 | ECH: Performance improvement ECM_PROCESSOR_ON_LIST |
| 23278 | MD01, MDBT: Performance during MRP run |