Trace Analysis Patterns (Part 31)

The next pattern with the name borrowed from historiography is Layered Periodization. This periodization of software trace messages includes individual messages, then aggregated messages from threads, then processes as wholes and finally individual computers (in client-server or similar sense). This is best illustrated graphically.

Message layer:

Thread layer (different colors correspond to different TID):

Process layer (different colors correspond to different PID):

Please note that it is also possible to have a periodization based on modules, functions and individual messages but it might be complicated because different threads can enter the same module or function and here other patterns more appropriate like Activity Region, Characteristic Message Block, and Background and Foreground Components.

- Dmitry Vostokov @ + -

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