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In the early 2000’s I whipped up a tool to convert log statements into visual swim lanes like the Chrome profiler does. That thing was a godsend for reasoning about complex parallelism.



Would you be willing to share this tool?


Oh that's long lost to the trashbin of history. As I recall it was a combination of:

- Log4j + MDC's so we could get a timestamp and thread ID easily

- some python scripting

I can't remember if it was PDF or SVG, but I do remember having to choose something that would allow for huge graphs and lots of scrolling!

These days there's better options on github, but nice to see I was on a decent path.




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