The Contention Report requests information that is associated with the resource contention topology function. The resource contention topology is the workload manager's internal view of the list of resources, work units, or transactions involved with resources that have been in contention for longer than a resource manager interval. Resource managers use the IWMCNTN service to notify WLM of changes that cause WLM to maintain or update the topology.
A detailed description of the IWMCNTN macro, resource ownership models, and a description of chronic resource contention can be found in the IWMCNTN section of z/OS MVS Programming: Workload Management Services.
This report is returned when the CONTENTION keyword is given on the WLMDATA subcommand. Variations of this information can be obtained by specifying either SUMMARY (Figure 1), DETAIL (Figure 1), or EXCEPTION (Figure 1).