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 “WLM
overview”.
For information on writing data collectors, see “Supplying
data to WLM”.
For information on changing the WLM interval, see “Specifying
the WLM interval (optional)”.
Printable version
