Hi Frank: Do you have SUBTSKS=1 set on to get the CO TCB to offset the write activity for VSAM files? If you have a lot of VSAM writes, you could probably see around a 3-5% CPU on this TCB. The RO TCB should reflect some RACF and progr am load activity. Finally, the FO TCB should show some activity for opening and closing VSAM files. All these TCBs can provide some offload from the QR TCB (be it small in comparison to the overall use of the QR TCB) and provide a small degree of multiprocessing without the OPENAPI (L8/L9) and L8 (DB2 and MQ). There are other TCBs that depend on the type of application code you are running may also help the CICS multiprocessing capability such as the SO (sockets listener), S8 (secured sockets) SZ (FEPI) and CQ (CEKL processing). The J8/J9 (Java) and X8/X9 (XPLINK) are other TCBs that can help in this area. Regards, Gene
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