Oracle Logging Framework
Just released, the first version of the Oracle Logging Framework is now available on SourceForge here. More information can be found here at AppsDBA.com.
Check out the AppsDBA paper Oracle Instrumentation.
This is the original version. An edited version appeared in the IOUG SELECT Journal in the first quarter
Trace File Event Timeline
The AppsDBA Interval Resource Profiler now includes the ability to create a trace file event timeline. The technique is described in more detail in blog posts starting here. This is a new technique that creates a graph of the events in a trace file grouped in approximately equal intervals. The advantage of this technique is to allow the visualization of event skew within a trace file. This may help illustrate scoping problems or event skew that might otherwise be hidden by the profile summary.
The new utility is a perl script called resource_event.pl. It requires the perl GD module, but a CSV file can also be created that can be imported into Excel for more sophisticated graphing.