We have problem with performace on portal when it makes a call on r/3 using JCO and JRFC to execute a RFC.
Scene: The problem occurs when the RFC is generated from portal
application via JCO.
The minimum execution time is 6 seconds. Two seconds to call JCO, three
seconds and half to execute RFC_GET_FUNCTION_INTERFACE (standard) and
DDIF and just 0,5 seconds to execute of the ZRFC that extract the data
In fact, we need to lower the time to execute
RFC_GET_FUNCTION_INTERFACE standard and DDIF.
There is no SAP Note or documents on SDN to fix this!