Re: CPU Usage


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Posted by Frank Schubert on December 12, 2007 at 11:57:18:

In Reply to: CPU Usage posted by John McBryde on December 06, 2007 at 05:45:07:

Look at this "da all" screen. Why is the CPU% different? The CPU% at the top is showing 100 whereas adding up the othe3 CPU% comes to 25.5?


----------------------------- IOF System Monitor -------------( 211 )-----
COMMAND ===> SCROLL ===> C
SYID--CPU%-----SIO-PAGING--TSUS--JOBS--UIC-----AVAIL----------------------
DEVP 100.0 207.0 22.0 22 13 2540 20826
-------JOBNAME--STEP-----PROCSTEP-JOBID--CL-ASID-------CPU--CPU%----SIO #-
_ 1 AD5REW08 STEP010 J007129 L 0031 946.5 8.5 7695
_ 2 AD6MEW46 STEP010 J007128 L 0030 814.0 8.0 392
_ 3 ADTCICU5 ADTCICU5 ADTCICU5 S006237 00BA 14.1 2.0 11K
_ 4 DSNDDBM1 DSNDDBM1 IEFPROC S000914 0071 380.1 1.0 7497K
_ 5 WLM WLM IEFPROC S 000B 2822.2 .5 148
_ 6 NETA NETA ISTINM01 S 001D 1097.3 .5 2207
_ 7 OPS0059 £TSUOPS DEVP0182 T007174 0021 81.8 .5 123K
_ 8 JES2 JES2 IEFPROC S 0022 577.0 .5 587K
_ 9 TMVSMSTR TMVSMSTR TMVSMSTR S000868 004B 5441.8 .5 116K
_ 10 TMONMVS TMONMVS TMONMVS S000872 004E 80.8 .5 4319
_ 11 TCPIP TCPIP TCPIP S000884 0059 622.2 .5 4346
_ 12 RMFGAT RMFGAT IEFPROC S000890 005F 3589.3 .5 43K
_ 13 VTPA VTPA IEFPROC S000896 0064 196.4 .5 12K
_ 14 DSNTDBM1 DSNTDBM1 IEFPROC S000913 0070 485.7 .5 12889K
_ 15 IMWEBSRV IMWEBSRV WEBSRV S000936 0084 291.0 .5 76K
_ 16 OPS0053 £TSUOPS DEVP0181 T007216 00E4 5.8 .5 7119
_ 17 *MASTER* S000823 0001 2178.0 .0 29K
_ 18 PCAUTH PCAUTH S 0002 .0 .0 16
_ 19 RASP RASP S 0003 18.5 .0 2

Thanks,

John


Hi John,

This is most likely due to enclave CPU. The System CPU busy at the top of the screen is showing how busy all of the CPUs in your complex are, without regard to what each CPU is doing. The CPU% column for each address space is showing how much TCB and SRB time that the address space is consuming. Enclave CPU time is not entered into this calculation.

If you scroll to the right several screens, you will come across the ECPU% column. This column is showing how much TCB, SRB, and Enclave time that the address space is consuming. If you scroll so that you can see the ECPU% field and then issue "SORT ECPURATE D" instead of "SORT CPURATE D", you should see that the sum of the ECPU% column comes much closer to the value in the System CPU busy field at the top of the screen.

Thanks,

Later.


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