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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