Previous Topic: 3.1.1 Vertical Bar Charts

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3.1.2 Stacked Vertical Bar Charts


                            BAR CHART OF CPUTIME
  CPUTIME
  0:03:00.00 +                               TTTTT
             |                               TTTTT
             |                               TTTTT
  0:02:00.00 +                               TTTTT                   TTTTT
             |                               TTTTT       TTTTT       TTTTT
             |      TTTTT                    TTTTT       TTTTT       TTTTT
  0:01:00.00 +      TTTTT                    SSSSS       TTTTT       TTTTT
             |      TTTTT                    SSSSS       TTTTT       SSSSS
             |      SSSSS        TTTTT       SSSSS       SSSSS       SSSSS
             -------------------------------------------------------------
                  AAAA100      BBBB200     CCCC300     DDDD400      EEE500

                                PROGRAM     Program Name

                           SYMBOL CPUTYPE      SYMBOL CPUTYPE

                           S      SRB          T      TCB

Figure 3-2.  Sample Stacked Vertical Bar Chart

A stacked vertical bar chart consists of bars that are
composed of individual segments stacked together to form the
total bar height.  This type of chart is often used to
present basic measurements over time, where each measurement
value is accumulated from distinct parts.

For example, the number of batch job executions by month
might be charted with the bars segmented by job class (that
is, each bar is composed of a segment for each job class).
The relative sizes of the bar segments illustrates the
percentage of jobs executed by class.  Thus this chart could
illustrate workload growth (jobs/month), the type of jobs
contributing to this growth (class x jobs/month), and changes
in the composition of the workload (relative contribution
from each job class).  The chart bars can represent actual
values, percentages of the total value, or cumulative
percentages.  Parameters are provided to control the chart
axis scale, data element labels, printed value formats, the
color and pattern used to fill the bars, and the color of
chart text.

Figure 3-2 is a sample stacked vertical bar chart showing TCB
CPU time and SRB CPU time by program.  The program names are
on the X-axis and CPU usage is on the Y-axis.  The total bar
height represents total CPU usage for a program (TCB CPU time
plus SRB CPU time).

To create a stacked vertical bar chart, select the Stacked
Vertical Bar Chart option from any of the following menus:

o  Direct Inquiry Color Graphics Menu
o  Direct Inquiry Printer Graphics Menu
o  Structured Inquiry Color Graphics Menu
o  Structured Inquiry Printer Graphics Menu