Getting Help

To access API help on a function displayed in the capture window, select Help»Help on Function or right-click on the function call and select Help on Function. The function help describes a function's purpose, syntax, parameters, and return values.

To access context-sensitive help for any UI item, click on the Help button

, and then hover over the item for which you need help.

Performance Considerations

I/O Trace can slow down the performance of your application and the entire system. Certain configurations of I/O Trace have a larger impact on performance than others. For example, configuring I/O Trace to keep a file log or to record full buffer information might have a significant negative effect on the performance of both your application and the system. You should use I/O Trace only while you are debugging your application or when performance is not critical.

To improve performance when capturing calls, I/O Trace double buffers call information, up to the history depth size you have specified. Making the history depth very small also has a significant negative impact on performance.