Ian Rogers c3034e70c6 perf python: Port stackcollapse to perf module ... Port stackcollapse.py from tools/perf/scripts/python/ to a standalone script in tools/perf/python/ refactored into a StackCollapseAnalyzer class. Improvements compared to the legacy script: - Traverse sample.callchain directly from perf.session without allocating per-event dictionaries, and fall back to sample.symbol when a sample has no callchain. - Replace deprecated optparse with argparse, adding -i/--input alongside --include-tid, --include-pid, --no-comm, --tidy-java, and --kernel. - Handle BrokenPipeError cleanly when output is piped into downstream tools (such as head or flamegraph.pl). Add a shell test (test_stackcollapse_python.sh) using a CPU workload (perf test -w noploop) to verify the standalone script. Assisted-by: Antigravity:gemini-3.1-pro Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2026-09-26 20:49:28 +02:00
..
counting.py	perf python: Improve perf script -l descriptions	2026-09-26 20:49:27 +02:00
ilist.py	perf python: Clean up pylint warnings in ilist.py	2026-09-26 20:49:27 +02:00
mem-phys-addr.py	perf python: Port mem-phys-addr to perf module	2026-09-26 20:49:28 +02:00
perf_live.py	perf python: Allow KeyboardInterrupt to propagate in LiveSession	2026-09-26 20:49:27 +02:00
perf.pyi	perf python: Add Intel PT call_return and itrace capability	2026-09-26 20:49:27 +02:00
stackcollapse.py	perf python: Port stackcollapse to perf module	2026-09-26 20:49:28 +02:00
stat-cpi.py	perf python: Port stat-cpi to perf module	2026-09-26 20:49:28 +02:00
tracepoint.py	perf python: Improve perf script -l descriptions	2026-09-26 20:49:27 +02:00
treport.py	perf python: Clean up pylint warnings in treport.py	2026-09-26 20:49:27 +02:00
twatch.py	perf python: Improve perf script -l descriptions	2026-09-26 20:49:27 +02:00