From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D13140DFC3; Mon, 13 Apr 2026 01:14:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776042850; cv=none; b=XUvAdZbPe5gg2kH2oX2wTKe69hUAeX5Ysp07URWFQLoskAHxI38TjePPQaCiZvCkJ5k3SKLkTYW1PnU9egxRyMcxvUmD3Is+9NZgJhUfx2vkTtTZywgVuz9kDgLp6J565qbXEnSnqCm5p1o0z6i66DOSbnVhUHnAUTCDtDt9OXw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776042850; c=relaxed/simple; bh=XN1+YO7A+pjk8feH0l70+LPdjX09SYt+tbI57FLTsgk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=U7cO9cahq8F/Ku0WuOZFaHVaTxYMW+ForivzMdBpsP4dmBATtPCPGARnygJ13s06XvQVxyQaWGlDUrFlp4s8nRYbyETZ7EGSMWcfy5MMf6XnHMa6ZzyI5mhYj+UjGBCKourRv+cK68SIo5SDx/deYEMGQD1mfk0OOvp3T1x5RI8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=nY1MKU7k; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="nY1MKU7k" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1776042849; x=1807578849; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=XN1+YO7A+pjk8feH0l70+LPdjX09SYt+tbI57FLTsgk=; b=nY1MKU7kKkimohZ3r1dhdBnAll9TlNyv0KFC7YPmY7ZGOr0BPihMWoi0 pqYUdpF5DfpJiw5XVmdYsRYQ2guXLraDy7oub6caSSqu+LGomFS6TUSxp jLBhAp+v4xqdytC1LeGRqQGD1IE91LqCfn4SeMaipYulvVS36xKDbs0W3 qTkKX7j2cpprAYS6wVp0TRmBaA+G9oVZGk24iE5Y3yUyGZ9zGP3zn85er S5GHBIWUj3uRcDSWCSutkXB4RTJLVGoAD3pCJOFOb5ek+xRO25lklos2F YjhqKhBWlLBw9ugrfwGHrEezBXwnVZic3+UAHq/sE5sapoP0ykGyLdhmj g==; X-CSE-ConnectionGUID: u6OlcDLDQByT0TaWqAzfGw== X-CSE-MsgGUID: GgUsQeZJQaOFQqx4z/4OXA== X-IronPort-AV: E=McAfee;i="6800,10657,11757"; a="94365103" X-IronPort-AV: E=Sophos;i="6.23,176,1770624000"; d="scan'208";a="94365103" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2026 18:14:09 -0700 X-CSE-ConnectionGUID: 5BZat5fBTyiPZXPY3Qc/Kw== X-CSE-MsgGUID: cxN0RObfQiWtEndYHBPtGQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,176,1770624000"; d="scan'208";a="226942094" Received: from spr.sh.intel.com ([10.112.229.196]) by fmviesa008.fm.intel.com with ESMTP; 12 Apr 2026 18:14:05 -0700 From: Dapeng Mi To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Ian Rogers , Adrian Hunter , Alexander Shishkin Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Zide Chen , Falcon Thomas , Dapeng Mi , Xudong Hao , Dapeng Mi Subject: [PATCH] perf tests: Add auto counter reload (ACR) sampling test Date: Mon, 13 Apr 2026 09:09:20 +0800 Message-Id: <20260413010920.546501-1-dapeng1.mi@linux.intel.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add auto counter reload sampling test to verify that the intended event records can be captured and the self-reloaded events won't generate any records. Signed-off-by: Dapeng Mi --- tools/perf/tests/shell/record.sh | 42 ++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh index 7cb81cf3444a..1068843282f5 100755 --- a/tools/perf/tests/shell/record.sh +++ b/tools/perf/tests/shell/record.sh @@ -402,6 +402,47 @@ test_callgraph() { echo "Callgraph test [Success]" } +test_acr_sampling() { + events="{instructions/period=20000,acr_mask=0x2/u,cycles/period=40000,acr_mask=0x3/u}" + pebs_events="{instructions/period=20000,acr_mask=0x2/pu,cycles/period=40000,acr_mask=0x3/u}" + echo "Auto counter reload sampling test" + if ! perf record -o "${perfdata}" -e "${events}" ${testprog} 2> /dev/null + then + echo "Auto counter reload sampling [Skipped not supported]" + return + fi + if ! perf script -i "${perfdata}" | grep -q "period=20000,acr_mask=0x2" + then + echo "Auto counter reload sampling [Failed missing instructions event]" + err=1 + return + fi + if perf script -i "${perfdata}" | grep -q "period=40000,acr_mask=0x3" + then + echo "Auto counter reload sampling [Failed cycles event shouldn't be sampled]" + err=1 + return + fi + if ! perf record -o "${perfdata}" -e "${pebs_events}" ${testprog} 2> /dev/null + then + echo "Auto counter reload PEBS sampling [Skipped not supported]" + return + fi + if ! perf script -i "${perfdata}" | grep -q "period=20000,acr_mask=0x2" + then + echo "Auto counter reload PEBS sampling [Failed missing instructions event]" + err=1 + return + fi + if perf script -i "${perfdata}" | grep -q "period=40000,acr_mask=0x3" + then + echo "Auto counter reload PEBS sampling [Failed cycles event shouldn't be sampled]" + err=1 + return + fi + echo "Auto counter reload sampling [Success]" +} + test_ratio_to_prev() { echo "ratio-to-prev test" if ! perf record -o /dev/null -e "{instructions, cycles/period=100000,ratio-to-prev=0.5/}" \ @@ -457,6 +498,7 @@ test_leader_sampling test_topdown_leader_sampling test_precise_max test_callgraph +test_acr_sampling test_ratio_to_prev # restore the default value base-commit: 4e03d6494f9504f8af46ba68a2a8b6877c196789 -- 2.34.1