From nobody Tue Feb 10 23:01:44 2026 Received: from mail-dy1-f201.google.com (mail-dy1-f201.google.com [74.125.82.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4BF703382E2 for ; Mon, 9 Feb 2026 20:22:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770668539; cv=none; b=EzDtobBaXI7ndLXKi2SImwymfnfjUeW3M6f5AgseKJBtz5pjwBrp+XK+G1pMwUzj1G3wWOhNetaFkB/nuJ15KPU0JlXqW8PGU6VaZSrn4Ez2jDtHm1LkxJxO348uwngf1E7wVcPxOog/yTGKMfpDuSSfxuJSZucMORt9XZxv1FA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770668539; c=relaxed/simple; bh=WD07r+zXb1oQG7d6AS1Ukm/XofMWenplrDPBHy3EgUc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=eES/VWfehvzBz973FVXsl27owt5TGzQ2h2GFVrbdTDZc4qXX2t6fW+a2YowQ75VS1g4Ao0r/QSEwXZVyVwcLfBm8FGrddKzICNUnkE4CXPBJ1bGEvO14WFtwtFCGA9ax5BC5lsjXRzTnB81SM+RN+q9mK6T0KCguQiOUkYySwZM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=WB3GV2UY; arc=none smtp.client-ip=74.125.82.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="WB3GV2UY" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-2ba8013a9e3so81583eec.0 for ; Mon, 09 Feb 2026 12:22:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1770668537; x=1771273337; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=eg434dzqJzkiMn4Wl04ZGI19f2RXB1FpMi/xYmoSVd0=; b=WB3GV2UYeZDYjp4QJ5Gm1EYZz8rI0X9dLNiDJwyi7+sVvTn6TNfGkwHLuloL6t1dPS sk0ysBMnx/wFaYiPYsTMnBTE+28fiQxomr8lbuIOMAx4UtPY3bbLtdEzfeHo2FEwOL93 05NEWb59nDyKvEjNzhFVl5tZ7Ey+Q11jehr7WvCG8yotLuxalwF+VETiJFTz7b8IxJVI YyYECkBqxCpM6X5ip7haMbEv6Xmk8Y9ntmHN9M0clye48erdLDI+Kdt3D98YkZxoKkHa 2PlBOdKVrbNCQvwwoxAmHsQaZW2UQFzK84F6xAT3LZvNP8eK1hnqFfCyeqMPQ6HQBGPb vsCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770668537; x=1771273337; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=eg434dzqJzkiMn4Wl04ZGI19f2RXB1FpMi/xYmoSVd0=; b=C/0W9ER9r9jeZSKJh2alvGY+pizUFZ4Yshch7juoRnUeMiGNjc3hqQtU/ROrWACGg2 dZeDPjVWZ0HqbgKZwYMS6V8Hk/uv8g6CJfiXtmlKC6bpU6yOxnkUVdBZDXDzgkm8pqDv aET1G/TRcQzfVr1vOQrrJXtN7Cn3h6/S5xCD1xY/W7nG7ASwjn7vdksOlQgSgMhftj/Y laQYgjARLUSIrI/yb1j0/YUIVldg23bjma+9aUJQUeStI9VMQmNLqY3q0cJVVeNvQTcN 5e+IRXyfZPHbINLWsyegZJnBv/4DcHXoXOuA2wtmN6onNS4v6rXEI7o0aB7dHqrUJ0nu EiMQ== X-Forwarded-Encrypted: i=1; AJvYcCVeOrM2kv68EgGZ7R6q+cG+bxjwhIOlq5ZRCPW41HrOwdySwkHXl3wAY3nE+rVG7sIJVhNNT/uecUulR0w=@vger.kernel.org X-Gm-Message-State: AOJu0Yzh2X3+qRVqnR66olpWqR/9r0y0M+DhttXwCM7rseRbm7VtNASD tQVfZUlj//ZKVJKyJ+Z8MNdcB4ynvWfzQjyNHuW0LNSYvD889IBTV6X5oQ0fDO86zng5KAR9c6A KHtwM3mXUSA== X-Received: from dyz14.prod.google.com ([2002:a05:693c:408e:b0:2ba:6448:ee87]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:6d07:b0:2ba:7b63:3f6e with SMTP id 5a478bee46e88-2ba7b635108mr972397eec.11.1770668537368; Mon, 09 Feb 2026 12:22:17 -0800 (PST) Date: Mon, 9 Feb 2026 12:22:08 -0800 In-Reply-To: <20260209202208.2027001-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260209202208.2027001-1-irogers@google.com> X-Mailer: git-send-email 2.53.0.rc2.204.g2597b5adb4-goog Message-ID: <20260209202208.2027001-4-irogers@google.com> Subject: [PATCH v1 3/3] perf test script: Add python script testing support From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Sandipan Das , Leo Yan , Yujie Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Basic coverage of python script support from `perf script`. Signed-off-by: Ian Rogers --- tools/perf/tests/shell/script_python.sh | 113 ++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100755 tools/perf/tests/shell/script_python.sh diff --git a/tools/perf/tests/shell/script_python.sh b/tools/perf/tests/she= ll/script_python.sh new file mode 100755 index 000000000000..6bc66074a31f --- /dev/null +++ b/tools/perf/tests/shell/script_python.sh @@ -0,0 +1,113 @@ +#!/bin/bash +# perf script python tests +# SPDX-License-Identifier: GPL-2.0 + +set -e + +# set PERF_EXEC_PATH to find scripts in the source directory +perfdir=3D$(dirname "$0")/../.. +if [ -e "$perfdir/scripts/python/Perf-Trace-Util" ]; then + export PERF_EXEC_PATH=3D$perfdir +fi + + +perfdata=3D$(mktemp /tmp/__perf_test_script_python.perf.data.XXXXX) +generated_script=3D$(mktemp /tmp/__perf_test_script.XXXXX.py) + +cleanup() { + rm -f "${perfdata}" + rm -f "${generated_script}" + trap - EXIT TERM INT +} + +trap_cleanup() { + echo "Unexpected signal in ${FUNCNAME[1]}" + cleanup + exit 1 +} +trap trap_cleanup TERM INT +trap cleanup EXIT + +check_python_support() { + if perf check feature -q libpython; then + return 0 + fi + echo "perf script python test [Skipped: no libpython support]" + return 2 +} + +test_script() { + local event_name=3D$1 + local expected_output=3D$2 + local record_opts=3D$3 + + echo "Testing event: $event_name" + + # Try to record. If this fails, it might be permissions or lack of + # support. Return 2 to indicate "skip this event" rather than "fail + # test". + if ! perf record -o "${perfdata}" -e "$event_name" $record_opts -- perf t= est -w thloop > /dev/null 2>&1; then + echo "perf script python test [Skipped: failed to record $event_name]" + return 2 + fi + + echo "Generating python script..." + if ! perf script -i "${perfdata}" -g "${generated_script}"; then + echo "perf script python test [Failed: script generation for $event_name= ]" + return 1 + fi + + if [ ! -f "${generated_script}" ]; then + echo "perf script python test [Failed: script not generated for $event_n= ame]" + return 1 + fi + + # Perf script -g python doesn't generate process_event for generic + # events so append it manually to test that the callback works. + if ! grep -q "def process_event" "${generated_script}"; then + cat <> "${generated_script}" + +def process_event(param_dict): + print("param_dict: %s" % param_dict) +EOF + fi + + echo "Executing python script..." + output=3D$(perf script -i "${perfdata}" -s "${generated_script}" 2>&1) + + if echo "$output" | grep -q "$expected_output"; then + echo "perf script python test [Success: $event_name triggered $expected_= output]" + return 0 + else + echo "perf script python test [Failed: $event_name did not trigger $expe= cted_output]" + echo "Output was:" + echo "$output" | head -n 20 + return 1 + fi +} + +check_python_support || exit 2 + +# Try tracepoint first +test_script "sched:sched_switch" "sched__sched_switch" "-c 1" && res=3D0 |= | res=3D$? + +if [ $res -eq 0 ]; then + exit 0 +elif [ $res -eq 1 ]; then + exit 1 +fi + +# If tracepoint skipped (res=3D2), try task-clock +# For generic events like task-clock, the generated script uses process_ev= ent() +# which prints the param_dict. +test_script "task-clock" "param_dict" "-c 100" && res=3D0 || res=3D$? + +if [ $res -eq 0 ]; then + exit 0 +elif [ $res -eq 1 ]; then + exit 1 +fi + +# If both skipped +echo "perf script python test [Skipped: Could not record tracepoint or tas= k-clock]" +exit 2 --=20 2.53.0.rc2.204.g2597b5adb4-goog