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Testing & Performance analysis :: RE: Need to understand TCB CPU and SRB CPU

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Author: vasanthz
Posted: Mon Mar 20, 2017 11:49 pm (GMT 5.5)

Hi Robert,
Code:
 CPU: 0 HR 10 MIN 38.06 SEC SRB: 0 HR 00 MIN 05.97 SEC
 CPU: 0 HR 10 MIN 50.81 SEC SRB: 0 HR 00 MIN 02.34 SEC

I believe the CPU mentioned on the message is total of TCB and SRB.
IEF032I message says

Code:
CPU: xxxxx HR  xx MIN  xx.xx SEC                                         
    For processor time, which includes enclave time, preemptive class SRB
    time, client SRB time, and normalized IFA service time, xxxxx HR     
    specifies the number of hours, xx MIN specifies the number of minutes
    and xx.xx SEC specifies the number of seconds (in seconds and       
    hundredths of a second).                                             


So the calcualtion has to be
%CPU variance = ((650.81 - 638.06) / 638.06) * 100 = 1.99 = 2 percent increase in CPU compared to the old version.
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