Describe the feature

Enables JFR heatmap converter to generate per-thread heatmap's flamegraph views i.e. the flamegraph view obtained by selecting heatmaps ranges shows frames in the flamegraph with a thread name as the root frame.

Use Case

While working with normal flamegraphs (no heatmap) can be useful to have a per-thread view, to better understand how the different threads behave; this seems even more important as we need to observe changes over time for long/medium running profiling sessions e.g. asymmetric workload distribution, spikes of created threads in elastic thread pools to sustain some increased bursty load, etc etc

I didn't thought yet how the diff option would behave with such feature in - but I suppose it will still work per-thread.

Proposed Solution

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change