The Concurrent Batch Job Statistics section of the Job summary report shows information on the batch job workload during the trace period according to job sets.
By looking at the first lines for a particular priority, you can quickly determine if the system was fully utilizing all available batch activity levels during the trace period.
Collection Services begins identifying concurrent jobs when it starts collecting data. All jobs that are currently active are assigned to a job set. There will often be several jobs that are continuously active during the trace period, such as an autostart job for SNADS.
If another job starts during the trace period and none of the original jobs have ended, it is assigned to a new job set. If a job ends and another job of the same priority starts, the new job is considered to be a second job in the same job set. For example, if the job queue entry for QBATCH has a MAXACT parameter of 3 and you submit 8 jobs to QBATCH during the trace period, there will probably be 3 job sets on the report with a total of 8 jobs shared between them.
The job sets are sorted by job priority. Thus, for the above example where the first job set was running for a total of 8 minutes and 50 seconds and the second job set was running for a total of 6 minutes and 55 seconds, the order of reporting shows the statistics for the second job set, then the third, and then the first and assigns them sequential numbers.
Job Summary Report 12/13/00 12:16:05
Concurrent Batch Job Statistics Page 0037
Report type *SUMMARY
Member . . . : TRACESVT Model/Serial . : 270/10-45WFM
Main storage . . : 2048.0 MB Started . . . . :12/13/00 11:53:31
Library . . : TRACESVT System name . . :ABSYSTEM
Version/Release : 5/ 1.0 Stopped . . . . :12/13/00 11:53:54
Partition ID : 00 Feature Code . :22A8-2252-1519
Job Number Elapsed CPU Excp Sync Async
Set Pty Jobs Seconds Seconds Wait Disk I/O Disk I/O
------ --- ------ -------- -------- -------- -------- --------
1 10 1 22.906 22.900
2 10 1 22.906 22.900
3 10 1 22.907 22.900
4 10 1 22.907 22.900
5 10 1 22.907 22.900
6 10 1 22.907 22.900
7 20 1 22.906 22.900
8 20 1 22.906 22.900
9 20 1 22.906 22.900
10 20 1 22.906 22.900
11 20 1 22.906 22.900
12 20 1 22.906 22.900
13 20 1 22.906 22.900
14 20 1 22.906 22.900
15 20 1 22.906 22.900
16 20 1 22.906 22.900
17 20 1 22.906 22.900
18 20 1 22.906 22.900
19 20 1 22.907 22.900
20 20 1 22.907 22.900
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