Performance Tuning Guide - EMC Community Network

Designing the Application
Note: Adding criteria to your query results in fewer items returned and less performance impact.
Note: Content Server, version 6.6, uses range queries that limit results sets to 100.
Designing task lists (work queues)
In TaskSpace, you create work queues to specify tasks performed by any one of multiple individuals.
The work queues can then be specified as the performer of an activity defined in Process Builder. You
define work queues by specifying the members (individuals, groups, or roles), policies (priorities),
and work assignment matching filters associated with the work queue.
TaskSpace populates task lists of individual users by querying work queue repository objects when
the associated work queue gets invoked as the performer of a process activity. TaskSpace applies
work assignment matching filters to the query results, returned from the repository, to refine the list
of tasks included in a user’s (processor’s) task list.
Avoid creating work queues with large ’unselective’ membership. Unselective work queues return
large result sets to TaskSpace which then undergo row by row processing through work assignment
matching filters before a list of tasks for a user inbox can be updated. With unselective work queue
memberships, row by row processing through TaskSpace filters compounds the performance impact
that results from the database returning a large result set of potential tasks for which a user is
unqualified (left branch of Figure 19, page 48.
Designing work queues with ’selective’ membership results in small result sets returned by the
database, better database performance, and fewer rows for processing through work assignment
matching filters (right branch of Figure 19, page 48). In general, assign work queue members that are
qualified to work on most tasks and the highest priority tasks in the queue. Use the work assignment
matching filters to fine-tune task assignments.
EMC Documentum xCP 1.0 Performance Tuning Guide 47