I suggest this Redbook:
http://publib-b.boulder.ibm.com/abstracts/sg247816.html?Open
Bob
Shameem .K .Shoukath wrote:
hi there,
I was just going thru the IPL statistics of all LPARs in out org. I see in one LPAR the SMFWAIT is taking fairly longer comp to others. out of total 00:01:12 MSI time this takes 00:00:53.586
I am not sure what happens in this process, took a chance & compared the SMFPRMxx and saw there is one exit IEFU84 additional compared to PROD and QA lpars.
would this be the cause for slower IPL ? Will it also may be one reason contributing to performance issues? as i understand this exit gets control before each SMF write.
*** IEEMB860 Statistics ***
ILRTMRLG 00:00:00.278 ASM
IEEVMSI 00:00:00.065 Reconfiguration
IARM8MSI 00:00:00.030 RSM - bring storage online
IECVIOSI 00:00:02.627 IOS dynamic pathing
RACROUTE 00:00:00.000 Initialize Security Environment
ATBINSYS 00:00:00.020 APPC
IKJEFXSR 00:00:00.183 TSO
IXGBLF00 00:00:00.029 Logger
AXRINSTR 00:00:00.042 System REXX
CEAINSTR 00:00:00.031 Common Event Adapter
HWIAMIN1 00:00:00.067 BCPii
COMMNDXX 00:00:00.091 COMMANDxx processing
IEAVTMSI 00:00:00.071 RTM
SMFWAIT 00:00:53.586 SMF
ICHSEC05 00:00:12.113 Security Server
MSIEXIT 00:00:00.000 Cnz_MSIExit Dynamic Exit
IEFJSIN2 00:00:03.188 SSN= subsystem
IEFHB4I2 00:00:00.015 ALLOCAS - UCB scan
CSRINIT 00:00:00.005 Windowing services
FINSHMSI 00:00:00.336 Wait for attached CMDs
IEEMB860 00:01:12.797 Uncaptured time: 00:00:00.011
________________________________
Thanks and Regards
Shameem K Shoukath
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