From nobody Wed Oct 8 12:36:07 2025 Received: from mail-oa1-f73.google.com (mail-oa1-f73.google.com [209.85.160.73]) (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 A96981D8E10 for ; Sat, 28 Jun 2025 01:55:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751075760; cv=none; b=PEp1gK5mxDX9NC6F2+kF58e86Kyx72tDHlLaRAM8e3JABwdIUT/ZhX9kU+DJzPs6YoQ2X5hVeP92GVebAbsVwUg1EHQO88TP5SmHQV0Q677ciRZcsRHfh1LXhl14df/uC+rL4JCRkPiEDQ8V8142vrjejVvcaDMopbV6NhIfvOc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751075760; c=relaxed/simple; bh=xp6QooYSKJIO1Ri906XmGIWsfQAQKsjdb0xfOXssMf0=; h=Date:Mime-Version:Message-ID:Subject:From:To:Content-Type; b=VtxaCq6Fh5HA3AWwdpqzg1hsycnyRs7Gr9D2SEF8glozUXfnYGoYHSM7Qche/vJQmA4dfjWSevHlBxjlFU1BxV6+vOu8tK38eJdDbIPGHP8DoXBMnUCMFLz6l1a1rJd3tFLGkHtOPRh318VuLOpco/N3YriZwl1THWao+qEeklc= 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=Nm7ykAd6; arc=none smtp.client-ip=209.85.160.73 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="Nm7ykAd6" Received: by mail-oa1-f73.google.com with SMTP id 586e51a60fabf-2d50f167550so154564fac.0 for ; Fri, 27 Jun 2025 18:55:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1751075758; x=1751680558; darn=vger.kernel.org; h=to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=R9h8FoTQNuVI8eMmwBP37Z8kyCmEZSw8NGWBhTujA80=; b=Nm7ykAd6fWeSufTbJVGNudayHXhgSEskE+UOhtZLXEBu1Pi91B2st+RouV6iwp7IuR JONLWqvOqogdHBESpBwHdBEmAurUGrMEL8wuUXNnMsINefn414M0d4tEYDpLOue8LQBM 8Jdv7lwYB7NVqy3mz92BB0F/bvxFd/Lg/qTUMYcMcTi+i57F7+fEf6gG83izWh1pe1LY 9ScIBIs+ogeT8l/Te6cQh1O7zJqvUJPQZHZr136ZwsiTtJ1EC2yJPTB6VGynlWxBRM7F Qcx2HAYSfSb6M5Pltx3bJXSGRFAQz4p6S56XSDtipaBDmlGYj9Dd0XK7IBK3plgi00GO C/0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751075758; x=1751680558; h=to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=R9h8FoTQNuVI8eMmwBP37Z8kyCmEZSw8NGWBhTujA80=; b=OH8fzV1lZ/rqAaH2USpEaLS6jjCF0c+97GF6JhWiKlIYn5wjTSVQ9lQ2TCko8CUEV+ SMCDm3u+KnfRtfTSvlxbm0N4uiqp/+NSZ6nvSABxRSrbl/v69eLHCHTf8sLhUFJyNIKO Ryak38hnBS60MSAUwIrHPO40LHcy86Uqq2HdFCHsubUCllGUsXFPTIzEeOiGepKPa0vn hW9sHCK8grAeZNXDO9BYzVgCuTSXqi2zRBFCFizn06MJbnIOOpYQvub9yUhlbIWm9xIi 0riBfSyYcNp60ScgCGND1LCY9m4b9TAFOWdYD90aU4c0N9GpPG8NGtZ+zFeSf+CdX4TB ZFIA== X-Forwarded-Encrypted: i=1; AJvYcCVwaPEYh9UgPnuMFN7WNVb2BpmuS0c7ZUg+yDrXzLS/nuw47XOcrbufzj6eTCbuxSd0AtNjbaw3s0nm+f0=@vger.kernel.org X-Gm-Message-State: AOJu0YxqCCdntuZ6Q9G82mmchIgHWNNk9kuqVPwpK4YIZ8/7Tp1ZUWQj sE6YQe7ZTo2LRUThrQ1jhXe37YkRwjPwDC9M4WBh3yxFNxwyxiBhUHC8XD21ObcTSi+gYIX37sA 82ME1rZ4GLw== X-Google-Smtp-Source: AGHT+IENTPRHNWGW0h/e1gGYBTAnij1lcBLoq9GKy23IedPH8T1A4YYl98zUsSHXi72+tWcQDyLiUfKt1KD0 X-Received: from oabgs15.prod.google.com ([2002:a05:6870:ab8f:b0:2d6:1436:180b]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6870:d92:b0:2ea:70ad:4517 with SMTP id 586e51a60fabf-2efed4f4f3emr3048947fac.15.1751075757707; Fri, 27 Jun 2025 18:55:57 -0700 (PDT) Date: Fri, 27 Jun 2025 18:55:53 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250628015553.1270748-1-irogers@google.com> Subject: [PATCH v2] perf test: Add basic callgraph test to record testing From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Dapeng Mi , Thomas Richter , Chun-Tse Shao , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Give some basic perf record callgraph coverage. Signed-off-by: Ian Rogers Reviewed-by: James Clark Tested-by: Thomas Richter --- v2: Pick up s390's needed "--call-graph dwarf" as spotted by James Clark . --- tools/perf/tests/shell/record.sh | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/reco= rd.sh index 2022a4f739be..b1ad24fb3b33 100755 --- a/tools/perf/tests/shell/record.sh +++ b/tools/perf/tests/shell/record.sh @@ -12,8 +12,10 @@ shelldir=3D$(dirname "$0") . "${shelldir}"/lib/perf_has_symbol.sh =20 testsym=3D"test_loop" +testsym2=3D"brstack" =20 skip_test_missing_symbol ${testsym} +skip_test_missing_symbol ${testsym2} =20 err=3D0 perfdata=3D$(mktemp /tmp/__perf_test.perf.data.XXXXX) @@ -359,6 +361,33 @@ test_precise_max() { fi } =20 +test_callgraph() { + echo "Callgraph test" + + case $(uname -m) + in s390x) + cmd_flags=3D"--call-graph dwarf -e cpu-clock";; + *) + cmd_flags=3D"-g";; + esac + + if ! perf record -o "${perfdata}" $cmd_flags perf test -w brstack + then + echo "Callgraph test [Failed missing output]" + err=3D1 + return + fi + + if ! perf report -i "${perfdata}" 2>&1 | grep "${testsym2}" + then + echo "Callgraph test [Failed missing symbol]" + err=3D1 + return + fi + + echo "Callgraph test [Success]" +} + # raise the limit of file descriptors to minimum if [[ $default_fd_limit -lt $min_fd_limit ]]; then ulimit -Sn $min_fd_limit @@ -374,6 +403,7 @@ test_uid test_leader_sampling test_topdown_leader_sampling test_precise_max +test_callgraph =20 # restore the default value ulimit -Sn $default_fd_limit --=20 2.50.0.727.gbf7dc18ff4-goog