11. WORKLOAD CHARACTERIZATION › 11.3 Standard Output › 11.3.4 Population Cluster Assignment Report

11.3.4 Population Cluster Assignment Report

The Population Cluster Assignment Report indicates how well
the clusters represent all of the resource vectors in the
population.  The report also provides an analysis of the
resources that are consumed by the clusters.  The resources
that are detailed in this report are specified on the
Workload Characterization screen (see Section 11.5).

Perhaps the best way to discuss the application of this
report is to review the representative hypothesis that was
introduced in Section 11.2.2.  The representative hypothesis
tests how close the resource vectors are to the
characterization that was proposed for the workload.  You can
test this hypothesis by assigning the resource vectors for
the full population to the clusters developed for the sample.

Test this hypothesis by comparing the marginal assignment
percentage for the sample of resource vectors, shown
previously in Figure 11-3, to the marginal assignment
percentage for the full population shown in Figure 11-4.  If
these two values are not significantly different (+ or - 2%),
then the conditions of the representative hypothesis have
been met.  If the test is not met, you should repeat 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 11-4.  Cluster Assignment - Total Population Report