feat: execution trace gantt chart #2114
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viktorasm
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When debugging highly parallelized task executions, it's not immediately obvious where the bottlenecks are.
This PR allows dumping timings of the execution as Gantt chart (Mermaid syntax). Here's a sample of of a real-word invocation:
Having this makes it so much easier to understand, how well things parallelize, are tasks unnecessarily blocked, what are the major bottlenecks, etc.
Usage:
--execution-trace-outputflag, thentaskinvocation writes contents of the gantt chart to it.