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authorIan Rogers <irogers@google.com>2026-06-15 18:15:43 -0700
committerNamhyung Kim <namhyung@kernel.org>2026-06-30 10:17:19 -0700
commit270e3f076b509c24d8cf69dde11db12d64706113 (patch)
treef38ba22403918d53fd0c686d35520d31f27440fa /tools/perf/tests/shell/lib/setup_python.sh
parentfed8332b0e0ba9dec1729f0422f0b0d96f7893f2 (diff)
downloadlinux-next-270e3f076b509c24d8cf69dde11db12d64706113.tar.gz
linux-next-270e3f076b509c24d8cf69dde11db12d64706113.zip
perf python: Add LiveSession helper
Add LiveSession class in tools/perf/python/perf_live.py to support live event collection using perf.evlist and perf.parse_events, avoiding the need to fork a separate perf record process. Signed-off-by: Ian Rogers <irogers@google.com> Assisted-by: Gemini:gemini-3.1-pro-preview Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alice Rogers <alice.mei.rogers@gmail.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Leo Yan <leo.yan@linux.dev> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/tests/shell/lib/setup_python.sh')
-rw-r--r--tools/perf/tests/shell/lib/setup_python.sh13
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/lib/setup_python.sh b/tools/perf/tests/shell/lib/setup_python.sh
index a58e5536f2ed..2173215a0517 100644
--- a/tools/perf/tests/shell/lib/setup_python.sh
+++ b/tools/perf/tests/shell/lib/setup_python.sh
@@ -14,3 +14,16 @@ then
echo Skipping test, python not detected please set environment variable PYTHON.
exit 2
fi
+
+# Set PYTHONPATH to find the in-tree built perf.so first, avoiding system-wide perf.so
+if [ -n "$PERF_EXEC_PATH" ] && [ -d "$PERF_EXEC_PATH/python" ]; then
+ PYTHONPATH_DIR="$PERF_EXEC_PATH/python"
+elif [ -d "$(dirname "$0")/../../python" ]; then
+ PYTHONPATH_DIR="$(dirname "$0")/../../python"
+elif [ -d "$(dirname "$0")/../python" ]; then
+ PYTHONPATH_DIR="$(dirname "$0")/../python"
+fi
+
+if [ -n "$PYTHONPATH_DIR" ]; then
+ export PYTHONPATH="$PYTHONPATH_DIR${PYTHONPATH:+:$PYTHONPATH}"
+fi