Traces
- Generate log of time-stamped events.
- Type, procedure name, destination task.
- Broad study of program behavior:
- Examine communication relationships.
- Localize sources of idle times.
- Identify temporary hot spots.
- Postprocessing to obtain profile, count, interval timer information.
- Generation of higher-order statistics and summary data.
- Disadvantage: huge volume of data.
- Thousands of megabytes for large program runs.
- Probe effect: measuring changes behavior.
- Extraction of relevant information difficult.
See Foster, Table 9.1 and Figure 9.1.
Author: Wolfgang Schreiner
Last Modification: December 23, 1997