linux-kernel - [PATCH v2 6/6] perf test: Simplify data symbol test

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Message-ID: <20250304022837.1877845-7-namhyung@kernel.org>
Date: Mon,  3 Mar 2025 18:28:37 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	Thomas Richter <tmricht@...ux.ibm.com>,
	Leo Yan <leo.yan@....com>
Subject: [PATCH v2 6/6] perf test: Simplify data symbol test

Now the workload will end after 1 second.  Just run it with perf instead
of waiting for the background process.

Cc: Thomas Richter <tmricht@...ux.ibm.com>
Cc: Leo Yan <leo.yan@....com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/tests/shell/test_data_symbol.sh | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/tools/perf/tests/shell/test_data_symbol.sh b/tools/perf/tests/shell/test_data_symbol.sh
index c86da02350596b35..1792b7ad4066f8cd 100755
--- a/tools/perf/tests/shell/test_data_symbol.sh
+++ b/tools/perf/tests/shell/test_data_symbol.sh
@@ -5,8 +5,6 @@
 # Leo Yan <leo.yan@...aro.org>, 2022
 
 shelldir=$(dirname "$0")
-# shellcheck source=lib/waiting.sh
-. "${shelldir}"/lib/waiting.sh
 
 # shellcheck source=lib/perf_has_symbol.sh
 . "${shelldir}"/lib/perf_has_symbol.sh
@@ -60,19 +58,10 @@ echo "Recording workload..."
 # specific CPU and test in per-CPU mode.
 is_amd=$(grep -E -c 'vendor_id.*AuthenticAMD' /proc/cpuinfo)
 if (($is_amd >= 1)); then
-	perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}" &
+	perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}"
 else
-	perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}" &
+	perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}"
 fi
 
-PERFPID=$!
-
-wait_for_perf_to_start ${PERFPID} "${ERR_FILE}"
-
-sleep 1
-
-kill $PERFPID
-wait $PERFPID
-
 check_result
 exit $?
-- 
2.48.1.711.g2feabab25a-goog