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15-2 Oracle Fusion Middleware Performance and Tuning Guide

15.2.1 Audit Level

The auditLevel property sets the audit trail logging level. This configuration property is applicable to both durable and transient processes. This property controls the amount of audit events that are logged by a process. Audit events result in more database inserts into the audit_trail table which may impact performance. Audit information is used only for viewing the state of the process from Oracle Enterprise Manager Console. Use the Off value if you do not want to store any audit information. Always choose the audit level according to your business requirements and use cases. For more information on setting the audit level, see Understanding the Order of Precedence for Audit Level Settings in Oracle Fusion Middleware Administrators Guide for Oracle SOA Suite.

15.2.2 LargeDocumentThreshold

The largedocumentthreshold property sets the large XML document persistence threshold. This is the maximum size in kilobytes of a BPMN Data Object before it is stored in a separate location from the rest of the instance scope data. This property is applicable to both durable and transient processes. Large XML documents impact the performance of the entire Oracle BPM Runtime if they are constantly read in and written out whenever processing on an instance must be performed. The default value is 10000 100 kilobytes. 15.2.3 Dispatcher System Threads The dspSystemThreads property specifies the total number of threads allocated to process system dispatcher messages. System dispatcher messages are general clean-up tasks that are typically processed quickly by the server for example, releasing stateful message beans back to the pool. Typically, only a small number of threads are required to handle the number of system dispatch messages generated during run time. Value Description Inherit Inherits the audit level from infrastructure level. Off No audit events activity execution information are persisted and no logging is performed; this can result in a slight performance boost for processing instances. Minimal All events are logged; however, no audit details variable content are logged. Error Logs only serious problems that require immediate attention from the administrator and are not caused by a bug in the product. Using this level can help performance. Production All events are logged. The audit details for assign activities are not logged; the details for all other activities are logged. Development All events are logged; all audit details for all activities are logged.