11. WORKLOAD CHARACTERIZATION › 11.6 Case Studies › 11.6.1 Batch Job Class › 11.6.1.3 Report Interpretation › 11.6.1.3.4 Population Cluster Assignment Report

11.6.1.3.4 Population Cluster Assignment Report

The Cluster Assignment Report for the population indicates
how well the clusters represent all of the resource vectors.
The report also provides an analysis of the resources that
are consumed by the clusters.  The resources detailed in this
report are specified on the Workload Characterization screen
(see Figure 11-18).

The representative hypothesis that was introduced in Section
11.2.2 tests how close the resource vectors are to the
characterization proposed for the workload.  We propose to
test this hypothesis by assigning the resource vectors for
the full population to the clusters developed for the sample.

You can test this hypothesis by comparing the marginal
assignment percentage for the sample of resource vectors,
shown previously in Figure 11-17, to the marginal assignment
percentage for the full population shown in Figure 11-28.
Since these two values are nearly the same (5.4% vs.  5.7%),
you can consider the conditions of the representative
hypothesis met.  If the test had not been met, you would have
repeated the procedure with a larger sample size.

                                          RESOURCE CONSUMPTION BY CLUSTER -- TOTAL POPULATION

                 TOTAL OBSERVATIONS  :    18633
                 OBS WITHIN RADIUS   :    17576
                 MARGINAL ASSIGNMENTS:     1057   5.7%

                 CLUS  WITHIN  MARGIN   JOBTCBTM   JOBEDASD   INITMIN    JOBNLR
                 ----  ------  ------  ---------- ---------- ---------- ----------
                   1    1296       1      1:31:42    1667621    2830.38    4247705
                            6.96%           1.99%      3.15%      1.99%     11.14%

                   2    1556       2      1:14:19    1578031    13008.4     396291
                            8.36%           1.61%      2.98%      9.13%      1.04%

                   3     280     463     48:34:27   23590139    60822.1    1696906
                            3.99%          63.26%     44.60%     42.68%      4.45%

                   4     432      80      4:06:36    5403274    15489.5     291784
                            2.75%           5.35%     10.22%     10.87%      0.77%

                   5    1517      11      5:53:01    3952170    8446.99     323429
                            8.20%           7.66%      7.47%      5.93%      0.85%

                   6     476      86      1:55:07    2155617    10764.1     620991
                            3.02%           2.50%      4.08%      7.55%      1.63%

                   7   11064       0      3:29:46    3489342    11599.6    2825604
                           59.38%           4.55%      6.60%      8.14%      7.41%

                   8     411       6      1:08:52    1178249     1611.2    3173915
                            2.24%           1.49%      2.23%      1.13%      8.33%

                   9     131      13      0:15:07     319366    1888.09     795981
                            0.77%           0.33%      0.60%      1.32%      2.09%

                  10     186     372      6:18:10    6998863    9600.94   23412139
                            2.99%           8.21%     13.23%      6.74%     61.42%

                  11     227      23      2:19:40    2554131    6444.38     335516
                            1.34%           3.03%      4.83%      4.52%      0.88%

                 **TOTALS**              76:46:46   52886803     142506   38120261

 Figure 11-28.  Population Cluster Assignment Report