HP 3000 Manuals

HP GlancePlus User's Manual (for MPE/iX Systems)

Setting Process Thresholds 

Once you are familiar with GlancePlus, you may want to customize the
Global screen to focus attention on the data most important to you and
your system environment.  For example, if a 4-second response time is
acceptable and a 5-second response time is unacceptable, you would want
to see processes receiving 5-second or longer response times highlighted
on the Global screen.  Processes exceeding a given level or threshold, as
in the example above, are called interesting.

A process can be interesting for these reasons:

   *   It uses a large amount of system resources.

   *   It must wait an exceptionally long time to use a system resource.

   *   It is newly created.

   *   It was terminated during the last interval.

These interesting processes are displayed on the Global screen.  Some of
these interesting processes might be highlighted.  Highlighting is used
to indicate a process that exceeds some higher threshold value.  For
example, you may want all processes exceeding 1% of the CPU displayed and
processes using more than 10% of the CPU highlighted.  On color monitors,
highlighting is in color; otherwise, highlighted items are underlined.

The power of GlancePlus lies in its ability to focus your attention on
the pertinent data.  A good rule of thumb is to set your process
thresholds so that the number of interesting processes does not exceed
the capacity of a single screen for an interval.  You also want to set
them appropriate to your system environment.

Use the Set Option Values (V) command to set process thresholds.  Figure
3-6 shows the display resulting from the Set Option Values (V) command.
The values in the left-hand and center columns are thresholds that
determine which processes are interesting.


          Figure 3-7.  Setting Process Thresholds 

In this example, GlancePlus displays any process that uses more than 1.0%
of the CPU during the current interval, and will display and highlight
any process that uses more than 10% CPU, more than 10 physical disc
transfers per second, receives an average response time larger than 5
seconds, performs more than 10 terminal transactions (that is pressing
Return or Enter) per minute, is newly created, or dies (terminates)
during the current interval.  The center column of thresholds causes
GlancePlus to display and highlight any process that waited longer than
50% of the interval time for impedes, CPU, disc, or memory.

To change a threshold, type in its keyword followed by a space or an
equal sign and the new value.  To save keystrokes, you need only type in
enough characters to make the keyword unique.  Typing either C 8 or CPU 8
would set the CPU threshold to 8%.  For keywords with two value choices,
such as NEW = YES/no, simply typing the keyword (such as NEW or N) will
toggle the value to the other choice.  The capitalized value is the
current selection.

Different situations will require different thresholds, and every system
is unique.  It is worthwhile taking time to become familiar with the
Process Thresholds Definition screen and to determine which thresholds
provide you with the best information on your system.  Once you have
determined the optimal settings for your thresholds, you can have
GlancePlus default to your custom values every time you run it (see
chapter 7).

MPE/iX 5.0 Documentation