You can get performance tracing of workflows by setting the event WfPerf for the component in which your workflow is running.
Setting the event to level 4 gives timing for the execution of the overall process.
Setting the event to level 5 provides timing for each step as well.
You can set this event level for any Siebel Server component that invokes a workflow process as part of Siebel eAI functionality. For example, to set this event level for the MQ Receiver using srvmgr, enter the following:
change evtloglvl WfPerf=5 for comp MqSeriesSrvRcvr
These events can be useful not just for measuring workflow performance but also for measuring the performance of business services executed within these workflows.
Hope this helps!!!!!