You can view a list of threads that meets your selection criteria.
Before you begin
Before you can view a summary of all selected history threads, ensure that the
thread history collector is running and you have identified one or more selection
criteria that you want to use to identify current or recent threads that may have
performance problems.
After
you have specified the criteria, the thread summary is displayed. The summary
displays columns of information that identify the workstation, transaction, user,
usage, and other characteristics you can use to determine which threads need
attention in order to improve system performance. If no specific timespan or
filtering criteria was selected, the last 50 executions are displayed by default.Figure 1. Thread History Summary
Tip: If you use the REST API to retrieve data from the HISTTHRD
table, you can customize the number of rows of thread history summary data that
are returned by setting the ZHISTDROW parameter, as shown
in the following example:
SYSTEM.PARMA("ZHISTDROWS","nnnn",4)
where
nnnn is the maximum number of rows returned. Specify a
value in the range 1-1500. If the ZHISTDROW parameter is
not specified, the default value for nnnn is set to
300.
