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<h1 class="topictitle1">Concurrent Batch Job Statistics</h1>
<div><p>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.</p>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<div class="example"><h4 class="sectiontitle">Example</h4><pre> 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
.
.
.</pre>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahxjobsumex12.htm" title="In general, this information identifies exceptional conditions and events that occur over the measurement period. If you analyze these exceptions, you might find jobs and programs you need to examine.">Special System Information</a></div>
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