HP-UX Workload Manager User's Guide

How WLM manages workloads
How WLM gets application data
Chapter 3 119
How WLM gets application data
You use a data collector for each workload that has a performance goal.
You can use one of the WLM-provided data collectors or you can make
your own. These collectors report their data to WLM on a regular basis.
This data updates the values of metrics used in the WLM configuration.
Once every interval (the default is 60 seconds), WLM checks the metric
values and adjusts resource allocations to better achieve the SLOs, if
needed.
For an illustration showing the role of data collectors in WLM operations,
see Figure 3-1 on page 115.
For information on writing data collectors, see “Supplying data to WLM”
on page 482.
For information on changing the WLM interval, see “Specifying the
WLM interval (optional)” on page 215.