HP 3000 Manuals

HP LaserRX/MPE User's Manual: Analysis Software

Using Other Display Features 

The zoom, scroll, and Y-Axis scale features in HP LaserRX/MPE can help
you choose metrics and time periods to examine within the logfile.

Commands under the Zoom Menu 

You can use three commands under the Zoom menu--Time, Process, and
Application--to focus on a specific time or on specific data.

The Time Command.     

Once a graph is displayed, you can narrow the displayed time frame using
HP LaserRX/MPE's zoom-by-time feature.

Zoom-by-time displays a new graph window with the horizontal axis equal
to the segment of the graph you selected.


NOTE  Zoom-by-time does not change the Starting Day default in the Draw
      Graphs dialog box.


The Application and Process Commands.     

HP LaserRX/MPE supplements its graphs with tables that show specific
measurement values.  Use the Application and Process commands under the
Zoom menu to produce windows with tabular data.  Descriptions of the data
elements in HP LaserRX/MPE tabular windows are provided in Appendix A
.

Zoom-by-application and zoom-by-process display specific metrics, in
tabular form, for the intervals you specify (zoom in on) on a displayed
graph.  Each column in the resultant table lists a separate data element.

You can zoom-by-application and zoom-by-process on any graph that
contains the appropriate data.  That is, the logfile must contain
application detail data to zoom-by-application; and it must contain
process detail data to zoom-by-process.  You can use the Logfile Info
button on the Open Local and Open Remote dialog boxes to determine what
data a logfile contains.

Each row in a table produced by zoom-by-application represents the
summary entries for each application active every 5-minute sample period.

Each row in the table produced by zoom-by-process represents a process
that was logged because it was an interesting process, as previously
defined.

Process entries are color-coded based on the interest reason for which
they were logged.  Interest reasons and the significance of colors in the
process display are described in Appendix A .

Scroll Bars on Graphs and Tables 

There can be none, one, or two scroll bars on an HP LaserRX/MPE graph.  A
horizontal scroll bar is present any time there is more information
before or after the interval currently displayed.

A vertical scroll bar is present on a graph if there are additional
metrics available for display in the window.

For more information on the metrics displayed on HP LaserRX/MPE graphs
and tables, see Appendix A .


          Figure 6-2.  Scroll Bars on a Graph 

Horizontal Scroll Bar.     

When viewing graphs, you can shift forward and backward in a displayed
logfile--examining different time periods--by using the horizontal scroll
bar on the graph window.

When viewing a tabular window, you can use the horizontal scroll bar to
examine columns of data that may be obscured by the frame of the window.

Vertical Scroll Bar.     

When a vertical scroll bar is present on a graph, you can display two
different sets of measurements in the same window.  When the scroll box
is at the top of the scroll bar, a summary graph is displayed.  When the
scroll box is moved down the scroll bar, more detailed graphs are
displayed.  See "Application Measurements"  for a description of the
graphs that are displayed.

When viewing a tabular window, you can use the vertical scroll bar to
examine rows of data that may be obscured by the frame of the window.


          Figure 6-3.  Scroll Bars on a Tabular Window 

Y-Axis Scale Options 

You can use a graph's vertical scale (Y-Axis) to interpret values of the
performance variables.  These values are represented in either a linear
or logarithmic (log) scale.

The log scale emphasizes the variance in lower values on the graphs.  It
can represent a wide range of values in a limited space, but tends to
visually distort the relationships.

The linear scale shows relationships in a more traditional way, in which
scale units are equal along the axis.

You can select log or linear scaling by using the Options command under
the Configure menu.  When the Log Scaling check box contains an X, log
scaling is used by HP LaserRX/MPE.


NOTE  Log Scaling affects subsequent graphs until you change it again.

      Changing the status of the Log Scaling check box does not affect
      the scale of graphs that have already been drawn.

MPE/iX 5.0 Documentation