In a message dated 6/8/2005 1:57:29 P.M. Central Daylight Time,  
[EMAIL PROTECTED] writes:

We have  JES2 exit 6 active on two lpars and have the approval to disable 
it.   This exit, among other things, does a number of svc 26 lookups.  We  
would like to be able to quantify how much cpu utilization is reduced by  
turning off the exit.  Can this be  measured?




One idea, for what it's worth:  have the exit ATTACH a subtask, then  WAIT 
for the sub-task to end, then return to the caller.  The ATTACHed  subtask does 
all the SVC 26 and other work.  I believe that CPU measurement  is at the task 
level, so you need to separate all the work that the exit does  into its own 
task that does nothing else.  In the subtask you find the  appropriate timing 
control block and compute the delta in CPU time from when the  subtasks starts 
to when it ends.
 
Bill Fairchild

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