RFC parameter for large data volume and high network latency

[Former Member]

I am running into some performance issues with RFC calls (actually from JCo client to a 7.0 system) where a relatively large volume of data (several megabytes) is transferred over WAN with high latency (~600ms ping response time).

I heard that there is a way to make RFC connection to transfer data in larger "chunks", so that the network performance is increased.

Any suggestions?

[Former Member]

Hey Igor,

Please try the following parameters:

abap/arfcrstatecol_delete_: value X

Activates deletion of ARFCRSTATE records in background. Forces report RSTRFCEU to run in batch periodically every 5 minutes (see SAP Note 539917)

gw/maxconn_: value 2000

Sets maximum number of active connections (Gateway)

gw/maxoverflow_size_: value 10000000

Sets size of local memory area for Gateway

icm/HTTP/maxrequest_size_KB_: value 2097152

Maximum size of HTTP request accepted by ICM

rdisp/appcca_blk_no_: value 2000

Sets TCP/IP communication buffer size

rdisp/forcesched_after_commit_: value no

Disables automatic rollout of context after commit work

rdisp/maxarq_: value 2000

Maximum number of internal asynchronous messages

rdisp/maxcomm._entries_: value 2000

Sets maximum number of communication entries

rdisp/rfcmax_own_login_: value 90

Sets RFC quota for own logins

rdisp/rfcmax_own_used_wp_: value 90

Sets RFC quota for own used work processes

rdisp/rfcmax_wait_time_: value 5

Sets RFC maximum wait time after load check

rdisp/tmmax_no_: value 2000

Sets maximum number of available connections (instance)

rdisp/wpca_blk_no_: value 2000

Sets block buffer size for work process communication

ztta/maxmemreq_MB_: value 2048

Limit for a single memory allocation request (default 64). This value depends on the maximum document size.