Solution : https://service.sap.com/sap/support/notes/1049245 (SAP Service marketplace login required)
Key words :
rdisp/wp_no_dia + rdisp/wp_no_vb + rdisp/wp_no_vb2 + rdisp/wp_no_btc + 1 + dw, 768m dw = additional dynamically creatable work processes, rdisp/wp_no profile parameter values, profile parameter vmcj/option/maxjavaheap, profile parameter vmcj/option/ps, profile parameter vmcj/max_vm_heap_mb, application server abap instance, default dynamic work processes, active vm container increases, parameter rdisp/wp_no_
Related Notes :
1020539 | Memory management in the VM container |