How to Trace Data Streams - Documentation for 3270 Superoptimizer/Cics 3.0.06
You Can Use the Trace Feature to Capture Data Streams for Analysis. Even Data Streams That Were Not Optimized Can Be Captured. Only One Wraparound Trace at a...
You can use the trace feature to capture data streams for analysis. Even data streams that were not optimized can be captured. Only one wraparound trace at a time can be active.
Wraparound data stream trace
The wraparound trace continues capturing data streams by wrapping to the top of the storage that you have allocated. This trace lets you continue capturing data streams until your target data stream is captured.
The wraparound trace is a powerful tool. The diagnostic wraparound trace provides valuable information for support personnel and customers.
To capture a large number of data streams or to leave the trace active for a long period of time to capture an error, use a wraparound trace.
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How wraparound data stream trace works
An outbound or inbound data stream is captured only if it matches the selection criteria that you established with the trace. If no criteria are specified, all data streams are captured.
One set of environment statistics and options is captured for each of the following types of data streams:
- Inbound (before and after optimization)
- Outbound (before and after optimization)
The trace status is retained between Optimizer shutdown and startup. If the trace was started before shutdown, it will continue tracing data streams after startup. The wrap trace buffer is deleted at shutdown.
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