Hi, The CONSOLE address had been using a noticeable amount of CPU higher than I would like. CONSOLE was at times using 40 to 50 MIPS an hour on a 2084.
Two White Papers on Console Performance proved quite useful in understanding part of what drove this. Console Performance Hints and Tips for a Parallel Sysplex Environment Part I & II by David Yackel (IBM Poughkeepsie) which were downloaded from http://www-03.ibm.com/servers/eserver/zseries/library/literature/referen ce.html Two APARs OA08482 & OA09229 also had a lot of information. We are currently at R4 still working on migrating to R6. We expect some further relief from OA09229 once z/OS R6 is fully implemented on all systems in the Sysplex but we got considerable immediate relief by a very small change. OA08482/UA14743 were already APPLIED on all R4 LPARs so we added .FORNSSI *NONE to MPFLSTXX and set this active dynamically. We automate messages on the local system where they are issued so we took the recommended action and suppressed broadcast to foreign subsystems and I have not found any problems as a result. This provided over an 80% reduction from the previous levels of CONSOLE CPU use during our peak WLC charging hours! If you are in a Sysplex you should spend a few minutes to look at this. I am still investigating a couple remaining spikes which seem be caused when UNIX processes on other systems do FTP to z/OS and create hordes of BPXF024I messages i.e. BPXF024I (EDWPFTP) Oct 17 06:27:12 ftps 16777906 : SR3313 sendx_data: sent 167988 bytes. rc = 167988. Prior to making the change I put CONSOLE in it's own report class and so it was easy to chart this before and after to document the results. Before changing your systems it is your responsibility to verify it won't be a problem for you. Caveat Emptor! Having said that I still think IBM would have done the majority of users a favor to ship the new default as .FORNSSI *NONE and provided appropriate HOLD(ACTION) and updated publications. Best Regards, Sam Knutson, GEICO Performance and Availability Management mailto:[EMAIL PROTECTED] (office) 301.986.3574 A wizard is never late Frodo Baggins, nor is he ever early. In Fact, he arrives precisely when he mean too! - Gandalf <> ==================== This email/fax message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this email/fax is prohibited. If you are not the intended recipient, please destroy all paper and electronic copies of the original message. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
