Hey all, This was asked before, but I still cannot find any good documentation on the matter. How does one access the callgraph from a python script generated by perf script? The export-to-postgresql.py seems to indicate that this feature was added, but the code is too convoluted for me to grasp.
Looking at the code for trace-event-python.c I see that there is a common_callchain, but I don't get such code generate: perf record --call-graph dwarf kwrite perf script -g python the result is: https://paste.kde.org/p0uazuubi Note how the `while ((event = trace_find_next_event(pevent, event)))` loop has not triggered any output. The reason is that pevent is NULL - where is that supposed to be set when looking at builtin-script.c? Can someone explain me what I'm doing wrong? Can someone reproduce the odd behavior above? -- Milian Wolff | milian.wo...@kdab.com | Software Engineer KDAB (Deutschland) GmbH&Co KG, a KDAB Group company Tel: +49-30-521325470 KDAB - The Qt Experts
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