linux-kernel - [PATCH 3/6] perf python tracepoint.py: Change the COMM using setproctitle if available

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Message-ID: <20250312203141.285263-4-acme@kernel.org>
Date: Wed, 12 Mar 2025 17:31:38 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	James Clark <james.clark@...aro.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Clark Williams <williams@...hat.com>,
	linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 3/6] perf python tracepoint.py: Change the COMM using setproctitle if available

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Otherwise when debugging we see just "python" in perf, top, etc.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Ian Rogers <irogers@...gle.com>
Cc: James Clark <james.clark@...aro.org>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Kan Liang <kan.liang@...ux.intel.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/python/tracepoint.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/perf/python/tracepoint.py b/tools/perf/python/tracepoint.py
index 38b2b6d11f64566a..15b0c82689966f23 100755
--- a/tools/perf/python/tracepoint.py
+++ b/tools/perf/python/tracepoint.py
@@ -5,7 +5,15 @@
 
 import perf
 
+def change_proctitle():
+    try:
+        import setproctitle
+        setproctitle.setproctitle("tracepoint.py")
+    except:
+        print("Install the setproctitle python package to help with top and friends")
+
 def main():
+    change_proctitle()
     cpus    = perf.cpu_map()
     threads = perf.thread_map(-1)
     evlist = perf.parse_events("sched:sched_switch", cpus, threads)
-- 
2.48.1