From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E111C433EF for ; Fri, 6 May 2022 12:26:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1391774AbiEFM3x (ORCPT ); Fri, 6 May 2022 08:29:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1391761AbiEFM3u (ORCPT ); Fri, 6 May 2022 08:29:50 -0400 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 879165D66F for ; Fri, 6 May 2022 05:26:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651839967; x=1683375967; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=rRbkAr1BIOzpeZas4yCHwVNVqZdJqraIQSO9bKjifNk=; b=dfdbt7SDCgsr+/MFGHwV4gmPxsB64KW9JlOwpJaw0VHO0KU4mHwZsTZA kC5TldTofNYSGoI480dRbPgbC5ye8wHE+VRgdwfQSMiNfk2heMGQYLrdm TWn2TBqtY2M3uFoNY0me2ik7UKdcsAb2Zl2bJaM2XNF6OcSKQToiKa9am uAOkqGcnjzVsUfPydjTB5UoPd85yxLzG2eeAE+gOlSt6PbzXMqTk42xdJ Op3WMY/ycVEl7nyqAvOOFdViunHDn836rnd6/ojwE8wFdfshXvPfzH+8Y hP3zgVALnu0P9txB61XluDFTblhrdS+P4W1Ud4qypQEK5SwtiXjqXBedQ g==; X-IronPort-AV: E=McAfee;i="6400,9594,10338"; a="266045728" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="266045728" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 05:26:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="709440658" Received: from ahunter-desktop.fi.intel.com ([10.237.72.92]) by fmsmga001.fm.intel.com with ESMTP; 06 May 2022 05:26:05 -0700 From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Ian Rogers , Alexey Bayduraev , Namhyung Kim , Leo Yan , linux-kernel@vger.kernel.org Subject: [PATCH V2 01/23] perf intel-pt: Add a test for system-wide side band Date: Fri, 6 May 2022 15:25:39 +0300 Message-Id: <20220506122601.367589-2-adrian.hunter@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220506122601.367589-1-adrian.hunter@intel.com> References: <20220506122601.367589-1-adrian.hunter@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a test for system-wide side band even when tracing selected CPUs. Tested-by: Ian Rogers Signed-off-by: Adrian Hunter --- tools/perf/tests/shell/test_intel_pt.sh | 71 +++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100755 tools/perf/tests/shell/test_intel_pt.sh diff --git a/tools/perf/tests/shell/test_intel_pt.sh b/tools/perf/tests/shell/test_intel_pt.sh new file mode 100755 index 000000000000..a3298643884d --- /dev/null +++ b/tools/perf/tests/shell/test_intel_pt.sh @@ -0,0 +1,71 @@ +#!/bin/sh +# Miscellaneous Intel PT testing +# SPDX-License-Identifier: GPL-2.0 + +set -e + +# Skip if no Intel PT +perf list | grep -q 'intel_pt//' || exit 2 + +skip_cnt=0 +ok_cnt=0 +err_cnt=0 + +tmpfile=`mktemp` +perfdatafile=`mktemp` + +can_cpu_wide() +{ + perf record -o ${tmpfile} -B -N --no-bpf-event -e dummy:u -C $1 true 2>&1 >/dev/null || return 2 + return 0 +} + +test_system_wide_side_band() +{ + # Need CPU 0 and CPU 1 + can_cpu_wide 0 || return $? + can_cpu_wide 1 || return $? + + # Record on CPU 0 a task running on CPU 1 + perf record -B -N --no-bpf-event -o ${perfdatafile} -e intel_pt//u -C 0 -- taskset --cpu-list 1 uname + + # Should get MMAP events from CPU 1 because they can be needed to decode + mmap_cnt=`perf script -i ${perfdatafile} --no-itrace --show-mmap-events -C 1 2>/dev/null | grep MMAP | wc -l` + + if [ ${mmap_cnt} -gt 0 ] ; then + return 0 + fi + + echo "Failed to record MMAP events on CPU 1 when tracing CPU 0" + return 1 +} + +count_result() +{ + if [ $1 -eq 2 ] ; then + skip_cnt=`expr ${skip_cnt} \+ 1` + return + fi + if [ $1 -eq 0 ] ; then + ok_cnt=`expr ${ok_cnt} \+ 1` + return + fi + err_cnt=`expr ${err_cnt} \+ 1` +} + +test_system_wide_side_band + +count_result $? + +rm -f ${tmpfile} +rm -f ${perfdatafile} + +if [ ${err_cnt} -gt 0 ] ; then + exit 1 +fi + +if [ ${ok_cnt} -gt 0 ] ; then + exit 0 +fi + +exit 2 -- 2.25.1