I agree w/Martin. At the time of IEFU83, all of the processing has been done, and you are merely trying to suppress the writing of the record. The writing of the SMF record is an asynchronous process, handled by the traditional SMF writer, or the System Logger and does not affect application performance. There is, of course, the subsequent processing of the SMF records, unrelated to application processing.
My understanding of "standard" SMF processing indicates that the "overhead" to create the SMF data is built in to the OS and cannot be changed. DB2 may have an option (I am not aware of one) to suppress the data creation. IOW, given that you are already incurring the overhead to do the data gathering, what is gained by suppressing the records? <snip> We are thinking about writing a SMF exit (IEFU8x) to not write certain DB2 IFCIDS of the SMF 102 record. Can anyone direct me to some documentation that would help me to understand how much processing time would be saved by doing this? </snip> ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
