metricsLevel Basic Tuning Considerations

Oracle Business Process Management Tuning 15-3 The minimum number of threads for this thread pool is 1 and it cannot be set to 0 a or negative number. The default value is 2. Any value less than 1 thread is changed to the default.

15.2.4 Dispatcher Engine Threads

The dspEngineThreads property specifies the total number of threads allocated to process engine dispatcher messages. Engine dispatcher messages are generated whenever an activity must be processed asynchronously. If the majority of processes deployed are durable with a large number of dehydration points mid-process receive, onMessage, onAlarm, and wait activities, greater performance may be achieved by increasing the number of engine threads. Note that higher thread counts can cause greater CPU utilization due to higher context switching costs. The minimum number of threads for this thread pool is 1 and it cannot be set to 0 a or negative number. The default value is 30 threads. Any value less than 1 thread is changed to the default.

15.2.5 Dispatcher Invoke Threads

The dspInvokeThreads property specifies the total number of threads allocated to process invocation dispatcher messages. Invocation dispatcher messages are generated for each payload received and are meant to instantiate a new instance. If the majority of requests processed by the engine are instance invocations as opposed to instance callbacks, greater performance may be achieved by increasing the number of invocation threads. Higher thread counts may cause greater CPU utilization due to higher context switching costs. The minimum number of threads for this thread pool is 1 and it cannot be set to 0 a or negative number. The default value is 20 threads. Any value less than 1 thread is changed to the default.

15.3 Tuning Oracle Workspace and Worklist Applications

The following settings can be used to tune Oracle Workspace and Worklist applications: Parameter Description HTTP Session Timeout To manage over resource usage, adjust the session timeout value, in minutes, in the web.xml file. The following is a sample snippet of web.xml: session-config session-timeout 5 session-timeout session-config NOTE : If you must modify this property, post deployment, you must edit web.xml manually. See Editing web.xml Properties in Oracle Fusion Middleware Administrators Guide for Oracle WebCenter.