[z/OS]

System performance when logging messages and trace data

Using message logging and trace data can affect system performance depending on your system configuration.

You can select the amount and types of trace data to be collected, which provides you with the ability to either run your application with minimal tracing when performance is a priority, or run your application with detailed tracing when you need to recreate a problem and collect additional diagnostic information.

The error log stream, the CTRACE data set for WebSphere® Application Server for z/OS®, and the master console are primarily intended for monitoring or recording diagnostic data for system components and critical applications. Depending on your installation's configuration, directing application messages and data to these resources might have an adverse affect on system performance. For example, if you send application data to the CTRACE data set, trace entries in that data set might wrap more quickly, which means you might lose some critical diagnostic data because the system writes new entries over existing ones when wrapping occurs. Use this logging support judiciously.
Note: You can only use WebSphere Application Server for z/OS support for logging messages and trace data for Java applications, not for Java applets.



Related tasks
Adding logging and tracing to your application
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Last updatedLast updated: Jun 12, 2013 3:32:32 AM CDT
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