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Mon, 3 Aug 2026 15:00:47 +0000 (GMT) From: Tanushree Shah To: acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, vmolnaro@redhat.com, mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com, irogers@google.com, namhyung@kernel.org Cc: linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, atrajeev@linux.ibm.com, hbathini@linux.ibm.com, Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, rostedt@goodmis.org, Tanushree Shah Subject: [RFC PATCH v3 5/5] perf test: Add test validating trace.dat generated by 'perf data convert --to-trace-dat' Date: Mon, 3 Aug 2026 20:29:55 +0530 Message-ID: <20260803145958.299956-6-tshah@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260803145958.299956-1-tshah@linux.ibm.com> References: <20260803145958.299956-1-tshah@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Info: AW1haW4tMjYwODAzMDEzMyBTYWx0ZWRfX1NKYkUQMfBTW z13z//EVAJhJB76PXZrYPo/gEbvAn9M9NyaCsQsn4Uh2n84wN/PZgx9cxNYUsFcdmOkUYYSDlGI zRzLrFHJ8zda4i63yH6TH+Qng6j0MZA= X-Authority-Analysis: v=2.4 cv=I7VVgtgg c=1 sm=1 tr=0 ts=6a70ad28 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=Yoc1fSEfpoo6qmh3DYcA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODAzMDEzMyBTYWx0ZWRfXy1MGl17H8jM9 uLpOa3I0jpG+PBJDb1MAPLlTtoM6nx8KdFxqu/6W1HVO7SAl3Zgwc2bzmeph2BpuYvAAoOwo2bz UytMHE71oacBg8z90XFt2eTDpTouPtRwBl/Elzbqm+1Ez1vtbL16rzFtKjOeTR09/y2/GK9uitR Dze3fx6fUhVs66Sy/Awxuzl8yU+U22T/TUmmS0v0yi19zcliOVU2T029LQBckkEhkncSSaDPfE+ qJxQ5463SSE1wcpfthUDL9Yo+ZwgEkhx00qOkg1igIh7wNJkZw6Bg/LUugj84HmMNHulTv9Xbm7 LtkCFbmHJHYUadxMMtua78vh+YfZMziIBVuSGYOAwJgcHRIbFN0XrefDtofNI5ipgau1x2G8e7X QirN0Xpa39YdkVxNJwKFyuZv9sTTBIbJx/F2RWdlGAMlbJ1pAXeFxsPwW1/yomcUv0SFJEJ/QEY AhsqakQBe964BTsIQ8w== X-Proofpoint-ORIG-GUID: FaSaOSby6Pi0R1RBGgx_0b4ks5uySHqR X-Proofpoint-GUID: vJqUWWuPHPjgIJuI9PQtkh6LcehU4CSd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-03_03,2026-08-03_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 adultscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608030133 Add a shell test covering perf data convert --to-trace-dat, alongside the existing --to-json and --to-ctf tests. The test: - skips if perf isn't linked with libtraceevent - converts a plain sched:sched_switch recording to trace.dat - converts a pipe-mode recording (perf record -o - | perf data convert -i -) - converts a recording with both tracepoint and non-tracepoint events (sched:sched_switch,cycles) - validates the resulting file with trace-cmd report if trace-cmd is installed, otherwise falls back to a basic non-empty-file check Signed-off-by: Tanushree Shah --- ...rf_data_converter_tracepoints_trace_dat.sh | 169 ++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100755 tools/perf/tests/shell/test_perf_data_converter_tracepoints_trace_dat.sh diff --git a/tools/perf/tests/shell/test_perf_data_converter_tracepoints_trace_dat.sh b/tools/perf/tests/shell/test_perf_data_converter_tracepoints_trace_dat.sh new file mode 100755 index 000000000000..9ca6432618cb --- /dev/null +++ b/tools/perf/tests/shell/test_perf_data_converter_tracepoints_trace_dat.sh @@ -0,0 +1,169 @@ +#!/bin/bash +# 'perf data convert --to-trace-dat' command test +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Copyright 2026, IBM Corporation +# Author: Tanushree Shah + +set -e + +err=0 + +perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +result=$(mktemp /tmp/__perf_test.output.trace.dat.XXXXX) + +cleanup() +{ + rm -f "${perfdata}" + rm -f "${result}" + trap - exit term int +} + +trap_cleanup() +{ + echo "Unexpected signal in ${FUNCNAME[1]}" + cleanup + exit 1 +} +trap trap_cleanup exit term int + +# Check if libtraceevent support is available +if ! perf check feature libtraceevent +then + echo "perf not linked with libtraceevent, skipping test" + exit 2 +fi + +# Check if trace-cmd is available for validation +have_trace_cmd=0 +if command -v trace-cmd >/dev/null 2>&1; then + have_trace_cmd=1 +fi + +check_sched_switch() +{ + if ! perf list | grep -q 'sched:sched_switch' + then + echo "sched:sched_switch tracepoint not available, skipping test" + exit 2 + fi +} + +test_trace_converter_command() +{ + echo "Testing Perf Data Conversion Command to trace.dat" + + if ! perf record -e sched:sched_switch -o "$perfdata" -- sleep 0.1 + then + echo "Failed to record perf data" + err=1 + return + fi + + rm -f "$result" + + if ! perf data convert --to-trace-dat "$result" --force -i "$perfdata" + then + echo "Perf Data Converter Command to trace.dat [FAILED]" + err=1 + return + fi + + if [ -f "$result" ] && [ -s "$result" ] ; then + echo "Perf Data Converter Command to trace.dat [SUCCESS]" + else + echo "Perf Data Converter Command to trace.dat [FAILED]" + err=1 + fi +} + +test_trace_converter_pipe() +{ + echo "Testing Perf Data Conversion Command to trace.dat (Pipe mode)" + + rm -f "$result" + + if ! perf record -e sched:sched_switch -o - -- sleep 0.1 | \ + perf data convert --to-trace-dat "$result" --force -i - + then + echo "Perf Data Converter Command to trace.dat (Pipe mode) [FAILED]" + err=1 + return + fi + + if [ -f "$result" ] && [ -s "$result" ]; then + echo "Perf Data Converter Command to trace.dat (Pipe mode) [SUCCESS]" + else + echo "Perf Data Converter Command to trace.dat (Pipe mode) [FAILED]" + err=1 + fi +} + +test_trace_converter_mixed_events() +{ + echo "Testing Perf Data Conversion with tracepoint and non-tracepoint events" + + # Record both tracepoint and non-tracepoint events + if ! perf record -e sched:sched_switch,cycles -o "$perfdata" -- sleep 0.1 + then + echo "Failed to record perf data (mixed events)" + err=1 + return + fi + + rm -f "$result" + + if ! perf data convert --to-trace-dat "$result" --force -i "$perfdata" + then + echo "Perf Data Converter with mixed events [FAILED]" + err=1 + return + fi + + if [ -f "$result" ] && [ -s "$result" ] ; then + echo "Perf Data Converter with mixed events [SUCCESS]" + else + echo "Perf Data Converter with mixed events [FAILED]" + err=1 + fi +} + +validate_trace_format() +{ + echo "Validating Perf Data Converted trace.dat file" + + if [ ! -f "$result" ] ; then + echo "File not found [FAILED]" + err=1 + return + fi + + # If trace-cmd is available, use it to validate the file + if [ "$have_trace_cmd" -eq 1 ] ; then + if trace-cmd report -i "$result" >/dev/null 2>&1 ; then + echo "trace-cmd can read the file [SUCCESS]" + else + echo "trace-cmd cannot read the file [FAILED]" + err=1 + fi + else + # Without trace-cmd, just check file exists and has content + if [ -s "$result" ] ; then + echo "Output file exists and has content [SUCCESS]" + else + echo "Output file is empty [FAILED]" + err=1 + fi + fi +} + +check_sched_switch +test_trace_converter_command +validate_trace_format +test_trace_converter_pipe +validate_trace_format +test_trace_converter_mixed_events +validate_trace_format + +cleanup +exit ${err} -- 2.47.1